Partial sums of odd double factorials (A001147) with alternating signs.
A263801
Partial sums of odd double factorials (A001147) with alternating signs.
Terms
- a(0) =1a(1) =0a(2) =3a(3) =-12a(4) =93a(5) =-852a(6) =9543a(7) =-125592a(8) =1901433a(9) =-32557992a(10) =622171083a(11) =-13127139492a(12) =303107003733
External references
- oeis: A263801