A055139 Column 0 of triangle A055138.

1, -1, 0, 1, -1, -1, 4, -1, -19, 31, 120, -483, -933, 8623, 6748, -189589, 41561, 5147391, -6328400, -170622599, 394612599, 6807529823, -23890335372, -322371010985, 1564733285829, 17884889743135, -114158790326872

Offset

0,7

Links

Table of n, a(n) for n=0..26.

Crossrefs

Sequence in context: A300141 A057968 A141233 * A349708 A249716 A333273

Adjacent sequences: A055136 A055137 A055138 * A055140 A055141 A055142

Keyword

sign

Author

Christian G. Bower, May 09 2000

Status

approved