A342929 Number of divisors of A025487(n), counting divisor multiplicity in A025487(n).
1, 2, 4, 4, 6, 7, 9, 10, 8, 11, 12, 14, 13, 15, 16, 17, 18, 17, 22, 21, 22, 16, 22, 24, 21, 26, 28, 25, 25, 29, 29, 24, 33, 37, 30, 34, 34, 34, 36, 28, 38, 37, 39, 39, 44, 34, 44, 43, 44, 41, 30, 49, 44, 32, 52, 45, 54, 39, 53, 48, 58, 48, 36, 58, 49, 49, 67, 56
Offset: 1
Keywords
Examples
a(11) = 12 as A025487(11) = 36 and the divisors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, 36 which occur with a multiplicity of 1, 2, 2, 1, 2, 1, 1, 1, 1 respectively (1^m = 1 for all m >= 0). These multiplicities sum to 1 + 1 + 2 + 2 + 1 + 2 + 1 + 1 + 1 + 1 = 12.
Links
- David A. Corneth, Table of n, a(n) for n = 1..10000
Comments