Array read by antidiagonals upwards: h(n,k) = number of sequences with n copies each of 1,2,...,k and longest increasing subsequence of length k (n>=1, k>=1).
A047909
Array read by antidiagonals upwards: h(n,k) = number of sequences with n copies each of 1,2,...,k and longest increasing subsequence of length k (n>=1, k>=1).
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =1a(6) =1a(7) =19a(8) =47a(9) =1a(10) =1a(11) =69a(12) =1306a(13) =641a(14) =1a(15) =1a(16) =251a(17) =31451a(18) =195709a(19) =11389a(20) =1a(21) =1a(22) =923a(23) =729811a(24) =46922017a(25) =50775091a(26) =248749a(27) =1a(28) =1a(29) =3431
External references
- oeis: A047909