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A171326 Number of 0..20 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
21, 440, 9178, 188356, 3959768, 83153605, 1738979798, 36412811648, 761311432412 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

column 21 of A171307.

LINKS

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

CROSSREFS

Sequence in context: A215856 A297692 A218840 * A092499 A207776 A207273

Adjacent sequences:  A171323 A171324 A171325 * A171327 A171328 A171329

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 06 2009

STATUS

approved

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Last modified November 28 22:01 EST 2021. Contains 349415 sequences. (Running on oeis4.)