110976

Appears in sequences

• a(n) = n^2*(n+1)^2*(n+2)/12.at n=16A004302
• a(n) = (1/3)*(n^2 + 2*n + 3)*(n+1)^2.at n=23A014820
• a(n) = floor(n/2) * floor((n-1)/2) * floor((n-2)/2) * floor((n-3)/2) * floor((n-4)/2) / 12.at n=36A028725
• Number of permutations where for every pair of adjacent elements one element in binary notation has ones at the same or adjacent positions to those of the other element.at n=12A115508
• Numbers n such that sigma(tau(phi(n))) = tau(phi(sigma(n))) = phi(sigma(tau(n))).at n=9A218006
• Numbers k such that k*(k+1) divides tribonacci(k) (A000073(k)).at n=26A299156
• Numbers with prime factorization Product_{k=1..w} prime(i_k) ^ e_k (where w = A001221(n) and prime(i) denotes the i-th prime number) such that i_k <> e_k for k = 1..w and { i_1, ..., i_w } = { e_1, ..., e_w }.at n=26A320252
• Number of 4-cycles in the n X n white bishop graph.at n=33A367993