RosettaCodeData/Task/Happy-numbers/K/happy-numbers-1.k
2023-07-01 13:44:08 -04:00

7 lines
155 B
Text

hpy: {x@&1={~|/x=1 4}{_+/_sqr 0$'$x}//:x}
hpy 1+!100
1 7 10 13 19 23 28 31 32 44 49 68 70 79 82 86 91 94 97 100
8#hpy 1+!100
1 7 10 13 19 23 28 31