A091795 Diagonal of A091793.

2, 9, 66, 2530, 60075, 1627941, 124324228, 1694579076, 446626220085, 73706596563655, 177223661334786, 171986625946535478, 3290057629552053451, 551042196782556679305, 71028805196838414285480

Offset

0,1

Links

Table of n, a(n) for n=0..14.

Formula

a(n) = A061431(n)+n*(n+1)/2. - David Wasserman, Dec 22 2005

Crossrefs

Cf. A091793, A091794.

Sequence in context: A365995 A020555 A243281 * A319286 A158952 A324167

Adjacent sequences: A091792 A091793 A091794 * A091796 A091797 A091798

Keyword

nonn

Author

Amarnath Murthy, Feb 18 2004

Extensions

More terms from David Wasserman, Dec 22 2005

Status

approved