Denominator of Sum_{k=0..n} (2^k * (k!)^2)/(2k + 1)!.
A277585
Denominator of Sum_{k=0..n} (2^k * (k!)^2)/(2k + 1)!.
Terms
- a(0) =1a(1) =3a(2) =15a(3) =21a(4) =315a(5) =3465a(6) =45045a(7) =15015a(8) =765765a(9) =14549535a(10) =14549535a(11) =25741485a(12) =1673196525a(13) =1003917915a(14) =145568097675a(15) =265447707525
External references
- oeis: A277585