704000

Appears in sequences

• G.f. satisfies: A(x) = 1 + 4*x*AGM(1, A(x)^2).at n=8A171454
• Number of arrays of length n that are sums of 3 consecutive elements of length n+2 permutations of 0..n+1, and no two consecutive rises or falls in the latter permutation.at n=8A229713
• The greedy sequence of real numbers at least 1 that do not contain any 4-term geometric progressions with integer ratio.at n=33A235055