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A036500 Number of inequivalent cyclic Hadamard difference sets with parameters (2^n-1, 2^(n-1)-1, 2^(n-2)-1). 0
1, 1, 1, 1, 2, 2, 6, 4, 5, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..10.

P. Gaal and S. W. Golomb, Exhaustive determination of (1023,511,255) cyclic Hadamard difference sets, Math. Comp. Math. Comp. 70 (2001), no. 233, 357-366.

CROSSREFS

Sequence in context: A264695 A112336 A028390 * A077080 A273012 A222404

Adjacent sequences:  A036497 A036498 A036499 * A036501 A036502 A036503

KEYWORD

nonn,nice,hard,more

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified January 28 03:06 EST 2020. Contains 331314 sequences. (Running on oeis4.)