OFFSET
1,1
COMMENTS
Notice that most terms are multiples of 3, while some are not: 484, 1331, 1474, 4961, 20402, 48884, 122221, 188887, 217822, 467126, 477773, 484484, 506506, 525503, 718189, 808808, 1461262, 1729408, 2004002, 2317315, 2920819, 4840484.
LINKS
Zak Seidov, A175440
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Zak Seidov, May 16 2010
STATUS
approved