1,1

The next term a(7) is too large to be displayed here.

M. A. Harrison, On the number of classes of switching networks, J. Franklin Instit., 276 (1963), 313-327.

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

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

Vincenzo Librandi, Table of n, a(n) for n = 1..9 (shortened by N. J. A. Sloane, Jan 13 2019)

Index entries for sequences related to switching networks

a(n) = (2^(3*2^n)+(2^n-1)*2^(3*2^(n-1)))/2^n. - Sean A. Irvine, Jul 04 2011

(MAGMA) [(2^(3*2^n)+(2^n-1)*2^(3*2^(n-1)))/2^n: n in [1..8]]; // Vincenzo Librandi, Jul 04 2011

Sequence in context: A223358 A184292 A225830 * A151584 A233085 A215858

Adjacent sequences: A000806 A000807 A000808 * A000810 A000811 A000812

nonn

N. J. A. Sloane

More terms from Sean A. Irvine, Jul 03 2011

approved