26204

Appears in sequences

• Let Do(n) = A006566(n) = n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k>0, with Do(i) = Do(j) + Do(k), ordered by increasing i; sequence gives i values.at n=9A053017
• phi(n) + n is a cube.at n=36A114074
• Up-down permutations on [n] whose peaks have k rises.at n=33A194354
• Triangle read by rows: T(n,k) is the number of down-up permutations on [n] whose peaks have k rises.at n=38A194365