142714
domain: N
Appears in sequences
- Number of separate orbits/cycles to which the Catalan bijections A072796/A072797 partition each A000108(n) structures encoded in the range [A014137(n-1)..A014138(n-1)] of the sequence A014486/A063171.at n=12A073191
- Number of interior balls in a truncated tetrahedral arrangement.at n=33A092966
- Numbers n such that the sum of the distinct prime factors of prime(n)-1 and prime(n+1)-1 are the same.at n=29A259562
- a(n) = Sum_{k=1..n} k^3*sigma_2(k), where sigma_2 is A001157.at n=8A364269