A026668 Sum{T(i,j)}, 0<=i<=n, 0<=j<=n, T given by A026659.

1, 3, 7, 17, 37, 79, 163, 359, 751, 1593, 3277, 7155, 14911, 31697, 65269, 142115, 295807, 629805, 1297801, 2821249, 5868145, 12507295, 25785595, 55992063, 116404999, 248297225, 512081677, 1111033773, 2308937965

Offset

0,2

Links

Table of n, a(n) for n=0..28.

Crossrefs

Sequence in context: A065545 A110930 A026646 * A111210 A033489 A357212

Adjacent sequences: A026665 A026666 A026667 * A026669 A026670 A026671

Keyword

nonn

Author

Clark Kimberling

Status

approved