The Ca3 sums of the Pell-Jacobsthal triangle A013609.
A180675
The Ca3 sums of the Pell-Jacobsthal triangle A013609.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =9a(4) =97a(5) =1041a(6) =11169a(7) =119833a(8) =1285697a(9) =13794337a(10) =148000449a(11) =1587907625a(12) =17036776865a(13) =182788823089
External references
- oeis: A180675