Determinant of n X n partial Hadamard matrix with coefficient m(i,j) 1<=i,j<=n (see comment).
1, 2, 4, 16, 32, 128, 512, 4096, 8192, 32768, 131072, 1048576, 4194304
2 seqfan posts
Sun Jun 13 08:51:05 CEST 2010 [seqfan] Re: (3^n+1)/2 is prime, A171381