A171294 Number of 1..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

20, 400, 7978, 158720, 3167712, 63133961, 1257532904, 25067835333, 499409248793

Offset

1,1

Comments

column 20 of A171275.

Links

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

Crossrefs

Sequence in context: A224386 A189198 A224019 * A267793 A009964 A285874

Adjacent sequences: A171291 A171292 A171293 * A171295 A171296 A171297

Keyword

nonn

Author

R. H. Hardin Dec 06 2009

Status

approved