A000110 / A014182: (A154107 convolved with A014182 = Bell numbers).
A154107
A000110 / A014182: (A154107 convolved with A014182 = Bell numbers).
Terms
- a(0) =1a(1) =1a(2) =3a(3) =5a(4) =15a(5) =61a(6) =207a(7) =881a(8) =4491a(9) =21493a(10) =117543a(11) =710021a(12) =4266279a(13) =28107745a(14) =196120515a(15) =1397747525a(16) =10648637151a(17) =84304440685a(18) =688868927151
External references
- oeis: A154107