Triangle T(n, k, q) = binomial(n, k) - 1 + q^floor(n/2)*binomial(n-2, k-1) with T(n, 0, q) = T(n, n, q) = 1 and q = 3, read by rows.
A173077
Triangle T(n, k, q) = binomial(n, k) - 1 + q^floor(n/2)*binomial(n-2, k-1) with T(n, 0, q) = T(n, n, q) = 1 and q = 3, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =5a(8) =5a(9) =1a(10) =1a(11) =12a(12) =23a(13) =12a(14) =1a(15) =1a(16) =13a(17) =36a(18) =36a(19) =13a(20) =1a(21) =1a(22) =32a(23) =122a(24) =181a(25) =122a(26) =32a(27) =1a(28) =1a(29) =33
External references
- oeis: A173077