Partial sum of (Catalan numbers A000108 multiplied by powers of 4).
A112698
Partial sum of (Catalan numbers A000108 multiplied by powers of 4).
Terms
- a(0) =1a(1) =5a(2) =37a(3) =357a(4) =3941a(5) =46949a(6) =587621a(7) =7616357a(8) =101332837a(9) =1375876965a(10) =18987759461a(11) =265554114405
External references
- oeis: A112698