Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A008292(n*k + 1, n-k) if k <= n otherwise A008292(n*(n-k), k), read by rows.
A157117
Triangle T(n, k) = f(n, k) + f(n, n-k), where f(n, k) = A008292(n*k + 1, n-k) if k <= n otherwise A008292(n*(n-k), k), read by rows.
Terms
- a(0) =2a(1) =1a(2) =1a(3) =1a(4) =8a(5) =1a(6) =1a(7) =131a(8) =131a(9) =1a(10) =1a(11) =8204a(12) =29216a(13) =8204a(14) =1a(15) =1a(16) =2097187a(17) =44136233a(18) =44136233a(19) =2097187a(20) =1a(21) =1a(22) =2147483736a(23) =846839476071a(24) =503464582368a(25) =846839476071a(26) =2147483736a(27) =1a(28) =1a(35) =1
External references
- oeis: A157117