A161338 a(n) = (A161330(n+1) - 2)/2.

0, 3, 6, 9, 18, 21, 30, 39, 48, 63, 72, 87, 108, 111, 120, 129, 144, 171, 186, 225, 246, 273, 312, 333, 366, 405, 414, 435, 456, 483, 528, 561, 624, 669, 714, 765, 798, 837, 882, 927, 972, 999, 1032, 1089, 1128, 1191, 1254, 1305, 1356, 1425, 1476, 1557, 1608

Offset

0,2

Links

Table of n, a(n) for n=0..52.

Crossrefs

Cf. A161330, A161331, A161336, A161337.

Sequence in context: A351231 A127644 A324283 * A047847 A007783 A363128

Adjacent sequences: A161335 A161336 A161337 * A161339 A161340 A161341

Keyword

nonn

Author

Omar E. Pol, Jun 09 2009

Extensions

More terms from Jinyuan Wang, Jul 30 2021

Status

approved