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A247014
Number of binary centrosymmetric matrices of size n X n.
1
1, 2, 4, 32, 256, 8192, 262144, 33554432, 4294967296, 2199023255552, 1125899906842624, 2305843009213693952, 4722366482869645213696, 38685626227668133590597632, 316912650057057350374175801344, 10384593717069655257060992658440192
OFFSET
0,2
REFERENCES
T. Muir, A Treatise on the Theory of Determinants, Dover, 1960, pages 18-19.
LINKS
Eric Weisstein's World of Mathematics, Centrosymmetric Matrix
FORMULA
a(n) = 2^A000982(n).
CROSSREFS
Sequence in context: A122693 A019060 A366365 * A085055 A075070 A144937
KEYWORD
nonn
AUTHOR
Lior Manor, Sep 09 2014
STATUS
approved