a(n) is the numerator of Sum_{k=0..n} (-1)^k / (2*k+1)!.
A354332
a(n) is the numerator of Sum_{k=0..n} (-1)^k / (2*k+1)!.
Terms
- a(0) =1a(1) =5a(2) =101a(3) =4241a(4) =305353a(5) =33588829a(6) =209594293
External references
- oeis: A354332
A354332
a(n) is the numerator of Sum_{k=0..n} (-1)^k / (2*k+1)!.