128256

Appears in sequences

• Triangle T(n,k) = sum_{0<=j<=k/2} A034867(k,j)*prime(n)^j, read by rows, 0<=k<n.at n=43A140894
• Number of binary strings of length n with equal numbers of 00001 and 00101 substrings.at n=18A164195
• Triangle read by rows: Number of (2n+1)-step self-avoiding walks on diamond lattice ending at point with x = 2k+1.at n=24A227716
• Numbers k such that 6^k - 5^k - 4^k - 3^k - 2^k - 1 is prime.at n=13A240507
• Centered pentagonal numbers that are abundant.at n=40A382696