Numerators of partial alternating sums of Catalan numbers scaled by powers of 1/5.
A121006
Numerators of partial alternating sums of Catalan numbers scaled by powers of 1/5.
Terms
- a(0) =1a(1) =4a(2) =22a(3) =21a(4) =539a(5) =2653a(6) =13397a(7) =66556a(8) =66842a(9) =1666188a(10) =8347736a(11) =41679894a(12) =208607482a(13) =208458902a(14) =1042829398a(15) =5212208021a(16) =26068111639a(17) =130314629237a(18) =26066746957
External references
- oeis: A121006