A057133 - OEIS

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A057133

Number of equivalence classes of self-dual 3-valued Post functions of n variables under action of symmetric group S_n.

3, 18, 3645, 317831937966, 3695220735363494263609015164945808626, 121096725674945775281820931369251071805435386335925283528419283108512015348357219417301307065046229239236569208945

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OFFSET

1,1

COMMENTS

Next term has 345 digits.

LINKS

Table of n, a(n) for n=1..6.

CROSSREFS

Cf. A001531, A057132, A057134, A001321.

Sequence in context: A297536 A157556 A214442 * A321249 A001999 A157580

Adjacent sequences: A057130 A057131 A057132 * A057134 A057135 A057136

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Aug 11 2000

STATUS

approved