A124682 a(n) = A002861(n) + A000081(n).

2, 3, 6, 13, 29, 71, 173, 444, 1148, 3030, 8059, 21715, 58836, 160687, 441083, 1217134, 3372386, 9380948, 26180962, 73292358, 205731862, 578922864, 1632707684, 4614098810, 13064064882, 37052720050, 105257568244, 299452309023, 853094139960, 2433439189419

Offset

1,1

Links

Table of n, a(n) for n=1..30.

Crossrefs

See A126285.

Sequence in context: A238426 A032066 A107316 * A079512 A280746 A174191

Adjacent sequences: A124679 A124680 A124681 * A124683 A124684 A124685

Keyword

nonn

Author

N. J. A. Sloane, Dec 26 2006

Status

approved