Double sum of the product of two binomials with even arguments.
A256462
Double sum of the product of two binomials with even arguments.
Terms
- a(0) =1a(1) =14a(2) =238a(3) =4092a(4) =70070a(5) =1192516a(6) =20177164a(7) =339653880a(8) =5692584870a(9) =95050101300
External references
- oeis: A256462