RosettaCodeData/Task/Catalan-numbers/Sinclair-ZX81-BASIC/catalan-numbers.basic
2023-07-01 13:44:08 -04:00

17 lines
235 B
Text

10 FOR N=0 TO 14
20 LET X=N
30 GOSUB 130
40 LET A=FX
50 LET X=N+1
60 GOSUB 130
70 LET B=FX
80 LET X=2*N
90 GOSUB 130
100 PRINT N,FX/(B*A)
110 NEXT N
120 STOP
130 LET FX=1
140 FOR I=1 TO X
150 LET FX=FX*I
160 NEXT I
170 RETURN