89128960

Appears in sequences

• a(n) = -2*a(n-1) + 4*a(n-3), with a(0) = 1, a(1) = -2, a(2) = 4.at n=29A099211
• a(n) = n*(n-3)*2^(n-2).at n=20A178987
• Values of A007692(n) that are not of the form x^2 + y^2 + z^2 where x, y, z are nonzero integers.at n=20A273123
• Number of 6-cycles in the n-folded cube graph.at n=15A301459
• Number of subsets of {1..n} that contain exactly three odd numbers.at n=33A331408
• Column 1 in the matrix of A279212 (whose indexing starts at 0).at n=22A335903