A171875 Subdiagonal of triangle A171871: Classifications of N elements containing exactly N-2 binary partitions.

0, 0, 1, 3, 17, 74, 358, 1631, 7563, 34751, 160807

Offset

2,4

Links

Table of n, a(n) for n=2..12.

R. Munafo, Classifications of N Elements

Crossrefs

Cf. A171871.

Sequence in context: A191587 A290411 A142868 * A356390 A100233 A015525

Adjacent sequences: A171872 A171873 A171874 * A171876 A171877 A171878

Keyword

nonn

Author

Robert Munafo, Jan 21 2010

Status

approved