2129920

Appears in sequences

• Sums of 2 distinct powers of 8.at n=26A038484
• Sums of two powers of 8.at n=33A055259
• Triangle T, read by rows, where T(n,k) = [T^(2^k)](n-k,0) * (2^k)^(n-k) for n>=k>=0 such that row n of the 2^(n-1)-th root of T consists solely of integers given by: [T^( 1/2^(n-1) )](n,k) = (2^k)^(n-k) for n>=0.at n=33A134049
• a(n) = floor(p/2) * floor(floor(p/2)/2) * floor(floor(floor(p/2)/2)/2) * ... * 1, where p=prime(n).at n=31A163467
• a(n) = n^8*(n^3 + 1)/2.at n=4A170775
• 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=15A273123
• a(n) = 2^(n*(n-1)/2) + 2^(n*(n+1)/2) for n > 0, with a(0) = 1.at n=6A337949