42898

Appears in sequences

• Number of separate orbits to which permutations given in A057511/A057512 (induced by deep rotation of general parenthesizations/plane trees) partition each A000108(n) objects encoded by A014486 between (A014138(n-1)+1)-th and (A014138(n))-th terms.at n=12A057513
• Number of two-rowed partitions of length 6.at n=29A070559
• Numbers k such that the sum of the reverses of 1,2,...,k is a perfect square.at n=9A074238
• a(n) = 680*2^n - 622.at n=6A305263