33492

Appears in sequences

• G.f.: A(x) = ( G(x)^7 - G(x^7) - 7*x*((1-x^6)/(1-x))/(1-x^7) )/(49*x^2) where G(x) is the g.f. of A110635.at n=11A111584
• Numbers k such that phi(k-6) = phi(k) = phi(k+6).at n=31A217006
• Number of compositions (ordered partitions) of n into an even number of triangular numbers.at n=27A339416