Column 0 of triangle A113378, also equals column 0 of A113389.
A113379
Column 0 of triangle A113378, also equals column 0 of A113389.
Terms
- a(0) =1a(1) =3a(2) =15a(3) =136a(4) =1998a(5) =41973a(6) =1166263a(7) =40747561a(8) =1726907675a(9) =86421647389
External references
- oeis: A113379