OFFSET
1,3
COMMENTS
For proof of finiteness see A069693.
MATHEMATICA
Do[ If[ Union[ Drop[ RotateLeft[ IntegerDigits[n(n + 1)/2]], -2]] == {3}, Print[n(n + 1)/2]], {n, 14, 2 10^6}]
CROSSREFS
KEYWORD
fini,full,nonn,base
AUTHOR
Amarnath Murthy, Apr 06 2002
EXTENSIONS
Extended by Robert G. Wilson v, Apr 07 2002
STATUS
approved