A057134 Number of equivalence classes of self-dual 4-valued Post functions of n variables under action of symmetric group S_n.

4, 128, 716353536, 14178431955039404875762272791942922240, 111731732749521642496450208318382051062328048504936611481207677617341443706047938314290688070835642649073892130179773602200265988880358130183392743915520

Offset

1,1

Comments

Next term has 614 digits.

Links

Table of n, a(n) for n=1..5.

Crossrefs

Cf. A001531, A057132, A057133, A001321.

Sequence in context: A141368 A146555 A305568 * A041495 A188315 A298274

Adjacent sequences: A057131 A057132 A057133 * A057135 A057136 A057137

Keyword

nonn

Author

Vladeta Jovovic, Aug 11 2000

Status

approved