37469

Appears in sequences

• First occurrence of exactly n 0's in the binary expansion of sqrt(2).at n=12A084187
• Semiprimes that are the sum of the first n semiprimes for some n.at n=37A092190
• Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=3A253493
• Number of (4+1) X (n+1) 0..2 arrays with every 2 X 2 subblock diagonal minus antidiagonal sum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=5A253498
• a(n) = Sum_{p in P} binomial(H(2,p),2), where P is the set of partitions of n, and H(2,p) = number of hooks of size 2 in p.at n=31A301313