37739520

Appears in sequences

• Amicable quadruples: the values of sigma corresponding to A036471-A036474.at n=19A116148
• Amicable quadruples: the values of sigma corresponding to A036471-A036474.at n=20A116148
• The number of permutations of 1, 2,..., n such that none of 123, 132, 213, 231, 312, 321 appear in the permutation.at n=11A269889
• Amicable numbers k that can be expressed as a sum k = x+y = A001065(x) + A001065(y) and a sum k = z+t = A001065(z) + A001065(t) where (x, y, z, t) are parts of two amicable pairs and A001065(i) is the sum of the aliquot parts of i.at n=3A359334
• Numbers whose divisors have a mean abundancy index that is larger than 3.at n=23A374779