A032177 Number of connected functions of n points with no fixed points and with no symmetries.

0, 0, 1, 2, 6, 12, 30, 66, 156, 357, 842, 1961, 4643, 10960, 26072, 62084, 148499, 355784, 855038, 2058536, 4967099, 12005308, 29067646, 70483478, 171158311, 416168250, 1013156687, 2469301316, 6024696764, 14713845227, 35968547836, 88003373522, 215493542625

Offset: 1

Author

Christian G. Bower

Keywords

• nonn

Crossrefs

Cf. A002862, A004111, A032175.

Formula

a(n) = A032175(n) - A004111(n). [Corrected by Sean A. Irvine, May 28 2020]

Extensions

More terms from Sean A. Irvine, May 28 2020