E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=15.
A141011
E.g.f. exp(sum_{d|M} (exp(d*x)-1)/d), M=15.
Terms
- a(0) =1a(1) =4a(2) =40a(3) =612a(4) =11976a(5) =276836a(6) =7336248a(7) =219610532a(8) =7331824360a(9) =269576919908
External references
- oeis: A141011