{Table to speed up calculating powers. Contains all the powers
of the digits 0..9 raised to the 0..21 power}

const PowersTable: array [0..21,0..9] of int64 = (
($01,$01,$01,$01,$01,$01,$01,$01,$01,$01),
($00,$01,$02,$03,$04,$05,$06,$07,$08,$09),
($00,$01,$04,$09,$10,$19,$24,$31,$40,$51),
($00,$01,$08,$1B,$40,$7D,$D8,$157,$200,$2D9),
($00,$01,$10,$51,$100,$271,$510,$961,$1000,$19A1),
($00,$01,$20,$F3,$400,$C35,$1E60,$41A7,$8000,$E6A9),
($00,$01,$40,$2D9,$1000,$3D09,$B640,$1CB91,$40000,$81BF1),
($00,$01,$80,$88B,$4000,$1312D,$44580,$C90F7,$200000,$48FB79),
($00,$01,$100,$19A1,$10000,$5F5E1,$19A100,$57F6C1,$1000000,$290D741),
($00,$01,$200,$4CE3,$40000,$1DCD65,$99C600,$267BF47,$8000000,$17179149),
($00,$01,$400,$E6A9,$100000,$9502F9,$39AA400,$10D63AF1,$40000000,$CFD41B91),
($00,$01,$800,$2B3FB,$400000,$2E90EDD,$159FD800,$75DB9C97,$200000000,$74E74F819),
($00,$01,$1000,$81BF1,$1000000,$E8D4A51,$81BF1000,$339014821,$1000000000,$41C21CB8E1),
($00,$01,$2000,$1853D3,$4000000,$48C27395,$30A7A6000,$168F08F8E7,$8000000000,$24FD3027FE9),
($00,$01,$4000,$48FB79,$10000000,$16BCC41E9,$123EDE4000,$9DE93ECE51,$40000000000,$14CE6B167F31),
($00,$01,$8000,$DAF26B,$40000000,$71AFD498D,$6D79358000,$45160B7A437,$200000000000,$BB41C3CA78B9),
($00,$01,$10000,$290D741,$100000000,$2386F26FC1,$290D7410000,$1E39A5057D81,$1000000000000,$6954FE21E3E81),
($00,$01,$20000,$7B285C3,$400000000,$B1A2BC2EC5,$F650B860000,$D39383266E87,$8000000000000,$3B3FCEF3103289),
($00,$01,$40000,$17179149,$1000000000,$3782DACE9D9,$5C5E45240000,$5C908960D05B1,$40000000000000,$2153E468B91C6D1),
($00,$01,$80000,$4546B3DB,$4000000000,$1158E460913D,$22A359ED80000,$287F3C1A5B27D7,$200000000000000,$12BF307AE81FFD59),
($00,$01,$100000,$CFD41B91,$10000000000,$56BC75E2D631,$CFD41B9100000,$11B7AA4B87E16E1,$1000000000000000,$A8B8B452291FE821),
($00,$01,$200000,$26F7C52B3,$40000000000,$1B1AE4D6E2EF5,$4DEF8A56600000,$7C05A810B72A027,$8000000000000000,$EE7E56E3721F2929));


function GetPower(X,Y: integer): int64;
{Extract power from table}
begin
Result:=PowersTable[Y,X];
end;


function IsDisarium(N: integer): boolean;
{Sum all powers of the digits raised to position power}
var S: string;
var I,J: integer;
var Sum: int64;
begin
Sum:=0;
S:=IntToStr(N);
for I:=1 to Length(S) do
	begin
	Sum:=Sum+GetPower(byte(S[I])-$30,I);
	end;
Result:=Sum=N;
end;


procedure ShowDisariumNumbers(Memo: TMemo);
{Show Disarium numbers up to specified limit}
{Processes about 5 million numbers per second}
var I,Cnt: int64;
begin
Cnt:=0;
I:=0;
while I<High(int64) do
	begin
	if IsDisarium(I) then
		begin
		Inc(Cnt);
		Memo.Lines.Add(IntToStr(Cnt)+': '+IntToStr(I));
		if Cnt>=19 then break;
		end;
	Inc(I);
	end;
end;