25566

Appears in sequences

• Number of rooted identity trees with n nodes and 3 leaves.at n=30A055328
• Pseudo-random numbers: a (very weak) pseudo-random number generator from the second edition of the C book.at n=19A061364
• Number of consecutive runs of 2 odd nonprimes congruent to 1 mod 4 below 10^n.at n=5A093185
• Sum of squared end-to-end distances of all n-step self-avoiding walks on the simple cubic lattice.at n=5A118313
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 5 and 6.at n=56A136888
• A126789 with zeros removed.at n=38A176623
• Number of nX7 integer arrays with each element equal to the number of horizontal and vertical neighbors differing from itself by exactly one.at n=10A266080
• Number of ways to write n as an ordered sum of 6 prime power palindromes (A084092).at n=31A282845
• Numbers k such that (38*10^k + 349)/9 is prime.at n=18A296093
• Expansion of Product_{1 <= i < j} 1/(1 - x^(i*j)).at n=41A321285
• a(n) = Sum_{k=0..floor(n/2)} (k+1) * binomial(2*k,2*n-4*k).at n=17A382300