A181349 Numerators of row sums of the triangle (lower triangular matrix) log(F) with F:=A037027 (Fibonacci convolution matrix).

0, 1, 3, 9, 17, 15, 142, 52, 2371, 1481, 3673, 576, 23341, 10085, 344857, 3298871, -296356, -61122461, 406758376, 11033588009, 451828963, -128048475089, -900388555615, 4122838816531, 1124813051005634, -220071533198789, -22575111900222262, 271507756187465, 100726408133038141

Offset

0,3

Comments

The denominator sequence is A181350.

Links

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

Formula

a(n) = numerator(sum(T[n,m], m=0..n)), with the matrix T:=log(F), where F:=A037027. Offset of the lower triangular matrix T is [0,0].

Example

The signed rational sequence starts with [0, 1, 3, 9/2, 17/3, 15/2, 142/15, 52/5, 2371/210, 1481/105, 3673/210, 576/35, 23341/2310, 10085/693, 344857/6006, 3298871/36036, -296356/2145 ,...].

Crossrefs

Sequence in context: A223188 A145796 A056403 * A240094 A174180 A106676

Adjacent sequences: A181346 A181347 A181348 * A181350 A181351 A181352

Keyword

sign,easy

Author

Wolfdieter Lang, Oct 15 2010

Status

approved