The (1,5)-entry in the 5 X 5 matrix M^n, where M={{5, 3, 2, 1, 1}, {3, 2, 1, 1, 0}, {2, 1, 1, 0, 0}, {1, 1, 0, 0, 0}, {1, 0, 0, 0, 0}}.
A123943
The (1,5)-entry in the 5 X 5 matrix M^n, where M={{5, 3, 2, 1, 1}, {3, 2, 1, 1, 0}, {2, 1, 1, 0, 0}, {1, 1, 0, 0, 0}, {1, 0, 0, 0, 0}}.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =40a(4) =315a(5) =2490a(6) =19681a(7) =155563a(8) =1229604a(9) =9719061a(10) =76821600a(11) =607214857a(12) =4799560053a(13) =37936780428a(14) =299860673343
External references
- oeis: A123943