E.g.f. exp(Sum_{d|M} (exp(d*x)-1)/d), M=13.
A141009
E.g.f. exp(Sum_{d|M} (exp(d*x)-1)/d), M=13.
Terms
- a(0) =1a(1) =2a(2) =18a(3) =262a(4) =4498a(5) =88174a(6) =1989162a(7) =51366438a(8) =1491069602a(9) =47749828830
External references
- oeis: A141009
A141009
E.g.f. exp(Sum_{d|M} (exp(d*x)-1)/d), M=13.