Row sums of exponential Riordan array [1+x*arctanh(x), x], A166357.
A166358
Row sums of exponential Riordan array [1+x*arctanh(x), x], A166357.
Terms
- a(0) =1a(1) =1a(2) =3a(3) =7a(4) =21a(5) =61a(6) =295a(7) =1331a(8) =10409a(9) =65017a(10) =694411a(11) =5454879a(12) =73145149a(13) =689074101a(14) =11090013103a(15) =121652191051
External references
- oeis: A166358