A118041 Column 0 of triangle A118040, which is the matrix square of triangle A118032; also equals a bisection of A118033, which is column 0 of A118032.

1, 2, 6, 16, 44, 116, 294, 748, 1794, 4352, 10072, 23496, 52862, 118820, 261214, 569604, 1228220, 2601164, 5495022, 11344842, 23610090, 47656726, 97354662, 192295578, 388117650, 753393744, 1495849616, 2851455044, 5606303284

Offset

0,2

Links

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

Crossrefs

Cf. A118033; A118040 (triangle), A118042 (column 2), A118043 (column 3); A118044 (row sums); related triangles: A118032, A118045.

Sequence in context: A027068 A003142 A335686 * A105073 A002605 A026134

Adjacent sequences: A118038 A118039 A118040 * A118042 A118043 A118044

Keyword

nonn

Author

Paul D. Hanna, Apr 10 2006

Status

approved