The (1,1)-entry in the 3 X 3 matrix M^n, where M = [1,2,1 / 2,2,0 / 1,0,0].
A100191
The (1,1)-entry in the 3 X 3 matrix M^n, where M = [1,2,1 / 2,2,0 / 1,0,0].
Terms
- a(0) =1a(1) =6a(2) =19a(3) =73a(4) =264a(5) =973a(6) =3565a(7) =13086a(8) =48007a(9) =176149a(10) =646296a(11) =2371321a(12) =8700553a(13) =31923030a(14) =117128107a(15) =429752305a(16) =1576795176a(17) =5785386229a(18) =21227039605a(19) =77883687150a(20) =285761407807
External references
- oeis: A100191