A054141 T(2n-1,n), array T as in A054134.

2, 6, 31, 180, 1101, 6901, 43828, 280664, 1807909, 11698479, 75973701, 494890116, 3231949644, 21153128028, 138712184488

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Crossrefs

Cf. A054134.

Sequence in context: A058028 A216834 A287592 * A007710 A275558 A094639

Adjacent sequences: A054138 A054139 A054140 * A054142 A054143 A054144

Keyword

nonn

Author

Clark Kimberling

Status

approved