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A171325 Number of 0..19 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
20, 399, 7923, 154562, 3095050, 61897265, 1232327939, 24566356693, 488948073586 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

column 20 of A171307.

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A170739 A218722 A158534 * A075843 A208072 A208122

Adjacent sequences:  A171322 A171323 A171324 * A171326 A171327 A171328

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 06 2009

STATUS

approved

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Last modified November 27 20:49 EST 2021. Contains 349395 sequences. (Running on oeis4.)