A047022 T(n,n), array T given by A047020.

1, 1, 2, 5, 19, 66, 227, 851, 3164, 11706, 44397, 168814, 641641, 2460264, 9462675, 36434340, 140822588, 545555490, 2116273293, 8226372157, 32029990809, 124856742546, 487360876726, 1904604296103, 7450351584876, 29172240231616

Offset

0,3

Links

Table of n, a(n) for n=0..25.

Crossrefs

Sequence in context: A341878 A062122 A148435 * A148436 A148437 A106873

Adjacent sequences: A047019 A047020 A047021 * A047023 A047024 A047025

Keyword

nonn

Author

Clark Kimberling

Status

approved