Column 3 of table A125781; also, equals column 1 of matrix power A091351^2.
A125783
Column 3 of table A125781; also, equals column 1 of matrix power A091351^2.
Terms
- a(0) =1a(1) =4a(2) =14a(3) =52a(4) =217a(5) =1033a(6) =5604a(7) =34416a(8) =237328a(9) =1822753a(10) =15473117a(11) =144165763a(12) =1464992791a(13) =16144683412a(14) =191967912402
External references
- oeis: A125783