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A171277 Number of 1..3 integer arrays v[1..n] of length n with all autocorrelation values sum(i){v[i]*v[i-k]} distinct for k in 0..n-1 0
3, 9, 26, 74, 211, 600, 1674, 4715, 13195, 36879, 101640, 283834, 780315, 2174226, 5966025, 16503544, 45368343, 124910711, 340562430, 941140452, 2565147930, 7020803047, 19209921738, 52557083220 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

column 3 of A171275.

LINKS

Table of n, a(n) for n=1..24.

CROSSREFS

Sequence in context: A077845 A291000 A276068 * A289806 A303976 A000243

Adjacent sequences:  A171274 A171275 A171276 * A171278 A171279 A171280

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 06 2009

STATUS

approved

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Last modified November 17 06:06 EST 2019. Contains 329217 sequences. (Running on oeis4.)