A378535 Möbius transform of A378542, where A378542 is the sum of divisors d of n such that n/d has an even number of prime factors (counted with multiplicity).
1, 1, 2, 3, 4, 3, 6, 5, 7, 5, 10, 7, 12, 7, 9, 11, 16, 9, 18, 13, 13, 11, 22, 13, 21, 13, 20, 19, 28, 15, 30, 21, 21, 17, 25, 23, 36, 19, 25, 23, 40, 21, 42, 31, 30, 23, 46, 27, 43, 25, 33, 37, 52, 27, 41, 33, 37, 29, 58, 33, 60, 31, 44, 43, 49, 33, 66, 49, 45, 35, 70, 41, 72, 37, 46, 55, 61, 39, 78, 49, 61, 41, 82
Offset: 1
Keywords
Links
- Antti Karttunen, Table of n, a(n) for n = 1..20000