93022

Appears in sequences

• Numbers k such that sigma(k) = phi(k+1) + phi(k-1).at n=8A068401
• Triangle read by rows: T(n,k) is the number of achiral colorings of the edges of a regular n-D orthotope (or ridges of a regular n-D orthoplex) using exactly k colors. Row n has n*2^(n-1) columns.at n=18A338145