61110

Appears in sequences

• Composite numbers k such that the difference between the odd and even aliquot parts of k divides k.at n=32A066193
• Difference between larger and smaller terms of n-th amicable pair.at n=37A066539
• Difference A063990(2n)-A063990(2n-1) between amicable numbers.at n=37A178542
• Number of (n+2) X (5+2) 0..3 arrays with every 3 X 3 subblock row and column sum not equal to 0 3 5 6 or 7 and every 3 X 3 diagonal and antidiagonal sum equal to 0 3 5 6 or 7.at n=24A252251
• Numbers n of the form 4*k+2 such that (sigma(n) mod n) divides n, where sigma is given by A000203.at n=7A254999
• The magic constants of most-perfect magic squares of order 6 composed of distinct prime numbers.at n=6A258755
• Difference between the larger and smaller terms of the n-th amicable pair (x,y) given in A259933.at n=37A275469
• Expansion of e.g.f. -log(1 - x - x^2/2).at n=7A328286
• Expansion of (1 + 4*x - 5*x^2 + 10*x^3) / ((1 - x) * (1 - 10*x^2)).at n=9A328332
• Primitive terms of A023197 that are of the form 4u+2.at n=40A388020