A005741 Number of fanout-free Boolean functions of n variables using And, Or, Xor, Not, and Majority gates.
2, 4, 16, 160, 3112, 89488, 3358600, 154925968, 8469271816, 535078978000, 38352590740744, 3074533743260944, 272548937753080072, 26471366143068858448, 2795374966070961592072, 318874907420330435803024, 39075835592493074367768328
Offset: 0
Keywords
References
- N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Links
- Andrew Howroyd, Table of n, a(n) for n = 0..200
- K. L. Kodandapani and S. C. Seth, On combinational networks with restricted fan-out, IEEE Trans. Computers, 27 (1978), 309-318. (Annotated scanned copy)
- Index entries for sequences related to Boolean functions
Formula
Binomial transform of A005617. - Andrew Howroyd, Mar 29 2025
Extensions
More terms from Sean A. Irvine, Jul 21 2016
a(0)=2 prepended and name clarified by Andrew Howroyd, Mar 29 2025
a(16) from Alois P. Heinz, Mar 29 2025