OFFSET
1,2
COMMENTS
1
23
456
7891
01112
131415
1617181...
MATHEMATICA
t = Flatten[IntegerDigits /@ Range[5565]]; t[[ Table[n(n + 1)/2, {n, 105}]]] (* Robert G. Wilson v, Feb 24 2005 *)
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
J. Taylor (integersfan(AT)yahoo.com), Mar 02 2004
STATUS
approved