Alternating row sums of triangle A049029 (S2(5)).
A145561
Alternating row sums of triangle A049029 (S2(5)).
Terms
- a(0) =1a(1) =4a(2) =31a(3) =359a(4) =5546a(5) =107249a(6) =2492701a(7) =67693534a(8) =2103854581a(9) =73651161959
External references
- oeis: A145561