Euler-Seidel matrix T(k,n) with start sequence A000248, read by antidiagonals.

Terms

a(0) =1a(1) =2a(2) =1a(3) =6a(4) =4a(5) =3a(6) =23a(7) =17a(8) =13a(9) =10a(10) =104a(11) =81a(12) =64a(13) =51a(14) =41a(15) =537a(16) =433a(17) =352a(18) =288a(19) =237a(20) =196a(21) =3100a(22) =2563a(23) =2130a(24) =1778a(25) =1490a(26) =1253a(27) =1057a(28) =19693a(29) =16593