OFFSET
1,2
COMMENTS
See A240908 for context. This sequence is the natural sequency ordering for an order 32 matrix.
LINKS
N. J. A. Sloane, A Library of Hadamard Matrices
Eric Weisstein's World of Mathematics, Hadamard Matrix
Wikipedia, Walsh matrix
FORMULA
Recursion: H(2) = [1 1; 1 -1]; H(n) = H(n-1) * H(2), where * is the Kronecker matrix product.
EXAMPLE
This is a fixed length sequence of only 32 values, as given in full above.
CROSSREFS
Cf. A240908 "natural order" sequencies for Hadamard-Walsh matrix, order 8.
Cf. A240909 "natural order" sequencies for Hadamard-Walsh matrix, order 16.
Cf. A153141 "dyadic order" sequencies for Hadamard-Walsh matrix, all orders.
Cf. A000975(n) is sequency of last row of H(n). - William P. Orrick, Jun 28 2015
KEYWORD
nonn,fini,full
AUTHOR
Ross Drewe, Apr 14 2014
EXTENSIONS
Definition of H(n) corrected by William P. Orrick, Jun 28 2015
STATUS
approved