Expansion of e.g.f. exp(Sum_{k>=1} phi(k)*x^k/k!), where phi() is the Euler totient function (A000010).
A300011
Expansion of e.g.f. exp(Sum_{k>=1} phi(k)*x^k/k!), where phi() is the Euler totient function (A000010).
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =20a(5) =80a(6) =362a(7) =1820a(8) =10084a(9) =60522a(10) =391864a(11) =2714514a(12) =20001700a(13) =156107224a(14) =1284705246a(15) =11112088358a(16) =100698613720a(17) =953478331288
External references
- oeis: A300011