41072

Appears in sequences

• Number of points on surface of dodecahedron: a(n) = 30*n^2 + 2 for n > 0.at n=37A005903
• Numbers k such that sigma(k) = 3k - 2*phi(k).at n=10A068414
• Composite numbers k such that k - phi(k) divides sigma(k) - k.at n=16A068418
• Composite n such that n reduced mod(phi(n)) = sigma(n) reduced mod(n).at n=15A068495
• Number of ways to place 2 nonattacking wazirs on an n X n board.at n=16A172225
• Number of (w,x,y) with all terms in {0,...,n} and |w-x| != |x-y|.at n=34A212960
• Numbers whose distance to the nearest cube equals the distance to the nearest product of 3 consecutive integers (three-dimensional oblong).at n=34A342873