1,1

Also nonisomorphic sets of nonempty subsets of an n-set.

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

M. A. Harrison, The number of equivalence classes of Boolean functions under groups containing negation, IEEE Trans. Electron. Comput. 12 (1963), 559-561.

M. A. Harrison, Introduction to Switching and Automata Theory. McGraw Hill, NY, 1965, p. 153.

S. Muroga, Threshold Logic and Its Applications. Wiley, NY, 1971, p. 38 Table 2.3.2. - Row 5.

Index entries for sequences related to Boolean functions

a(n) = A003180(n)/2. Cf. A058891.

Sequence in context: A135755 A051185 A118623 this_sequence A096138 A004153 A071440

Adjacent sequences: A000609 A000610 A000611 this_sequence A000613 A000614 A000615

nonn,easy,nice

N. J. A. Sloane (njas(AT)research.att.com).

More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Feb 23 2000