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K. L. Kodandapani and S. C. Seth, On combinational networks with restricted fan-out, IEEE Trans. Computers, 27 (1978), 309-318.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Table of n, a(n) for n=1..7.
Index entries for sequences related to Boolean functions
Sequence in context: A005736 A123903 A172401 * A055612 A236691 A056642
Adjacent sequences: A005739 A005740 A005741 * A005743 A005744 A005745
N. J. A. Sloane.