52024

Appears in sequences

• Number of rooted planar 2-trees with n nodes.at n=10A001895
• Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089859/A089863.at n=12A089407
• a(0)=1; a(n) = sigma_2(n) + sigma_3(n).at n=37A092344
• Number of partitions of 2*n into distinct parts with exactly two odd parts.at n=43A096914
• Tribonacci-Niven numbers (A352089) with a record gap to the next tribonacci-Niven number.at n=12A376029