The (4,1)-entry in the 4 X 4 matrix M^n, where M = [1,0,0,0 / 3,3,0,0 / 3,6,3,0 / 1,3,3,1].
A100190
The (4,1)-entry in the 4 X 4 matrix M^n, where M = [1,0,0,0 / 3,3,0,0 / 3,6,3,0 / 1,3,3,1].
Terms
- a(0) =1a(1) =20a(2) =147a(3) =760a(4) =3317a(5) =13164a(6) =49255a(7) =177200a(8) =620073a(9) =2125828a(10) =7174523a(11) =23914920a(12) =78919069a(13) =258280412a(14) =839411151a(15) =2711943520a(16) =8716961105a(17) =27894275316a(18) =88913002339a(19) =282429536600a(20) =894360198981
External references
- oeis: A100190