Number of 1..2 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.
A171276
Number of 1..2 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.
Terms
- a(0) =2a(1) =4a(2) =7a(3) =15a(4) =23a(5) =48a(6) =87a(7) =157a(8) =274a(9) =560a(10) =933a(11) =1822a(12) =3203a(13) =5993a(14) =10478a(15) =19922a(16) =34214a(17) =63331a(18) =110943a(19) =203812a(20) =352455a(21) =646274a(22) =1109722a(23) =2023785a(24) =3479398a(25) =6260690a(26) =10787932a(27) =19322649a(28) =33171504a(29) =59007624
External references
- oeis: A171276