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A171292
Number of 1..18 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
18, 324, 5813, 103983, 1866632, 33457393, 599230909, 10742524446, 192455268439
OFFSET
1,1
COMMENTS
column 18 of A171275.
CROSSREFS
Sequence in context: A207240 A207498 A285878 * A001027 A285875 A223311
KEYWORD
nonn
AUTHOR
R. H. Hardin Dec 06 2009
STATUS
approved