Triangle of Euler-Bernoulli or Entringer numbers read by rows: T(n,k) is the number of down-up permutations of n+1 starting with k+1.
A008282
Triangle of Euler-Bernoulli or Entringer numbers read by rows: T(n,k) is the number of down-up permutations of n+1 starting with k+1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =2a(7) =4a(8) =5a(9) =5a(10) =5a(11) =10a(12) =14a(13) =16a(14) =16a(15) =16a(16) =32a(17) =46a(18) =56a(19) =61a(20) =61a(21) =61a(22) =122a(23) =178a(24) =224a(25) =256a(26) =272a(27) =272a(28) =272a(29) =544
External references
- oeis: A008282