A047033 T(n,n-1), array T as in A047030.

1, 1, 4, 14, 52, 195, 736, 2789, 10620, 40611, 155860, 600002, 2315912, 8959834, 34735000, 134903491, 524786380, 2044434535, 7975049436, 31146540719, 121774481668, 476576304999, 1866821827500, 7318739927465, 28714752439872

Offset

1,3

Links

Table of n, a(n) for n=1..25.

Crossrefs

Sequence in context: A211307 A369577 A099486 * A382320 A017947 A394668

Adjacent sequences: A047030 A047031 A047032 * A047034 A047035 A047036

Keyword

nonn

Author

Clark Kimberling

Status

approved