A131344 A046854 * A065941.

1, 2, 1, 3, 2, 1, 5, 4, 3, 1, 8, 7, 8, 3, 1, 13, 12, 18, 9, 4, 1, 21, 20, 38, 21, 14, 4, 1, 34, 33, 76, 47, 39, 15, 5, 1, 55, 54, 147, 97, 100, 43, 21, 5, 1, 89, 88, 277, 194, 236, 115, 69, 22, 6, 1

Offset

0,2

Comments

Left border = Fibonacci numbers starting with F(2). Row sums = A131246: (1, 3, 6, 13, 27, 57,...). A131345 = A065941 * A046854.

Links

Table of n, a(n) for n=0..54.

Formula

A046854 * A065941 as infinite lower triangular matrices.

Example

First few rows of the triangle are:
1;
2, 1;
3, 2, 1;
5, 4, 3, 1;
8, 7, 8, 3, 1;
13, 12, 18, 9, 4, 1;
...

Crossrefs

Cf. A046854, A065941, A131246, A131345.

Sequence in context: A207611 A320973 A058400 * A129262 A322263 A279394

Adjacent sequences: A131341 A131342 A131343 * A131345 A131346 A131347

Keyword

nonn,tabl

Author

Gary W. Adamson, Jun 30 2007

Status

approved