34480

Appears in sequences

• Number of binary strings of length n with equal numbers of 00001 and 00101 substrings.at n=16A164195
• Number of n X n symmetric 0..1 arrays with each element equal to at least two horizontal or vertical neighbors, containing at least one 1 and with new values 0..1 introduced in lower triangular row major order.at n=7A192840
• a(n) = maximal cycle size in range [2^(n-1),(2^n)-1] of permutation A209861/A209862.at n=18A209865
• a(n) is the least k > n such that n divides k, and n+1 divides k+1, and n+2 divides k+2.at n=39A295388
• a(n) = (-2 - (-1)^n*(-2 + n) + n + 2*n^3)/4.at n=41A323723