Array read by ascending antidiagonals: A(n, k) is the permanent of the n-th order Hankel matrix of Catalan numbers M(n) whose generic element is given by M(i,j) = A000108(i+j+k) with i,j = 0, ..., n-1.
A368026
Array read by ascending antidiagonals: A(n, k) is the permanent of the n-th order Hankel matrix of Catalan numbers M(n) whose generic element is given by M(i,j) = A000108(i+j+k) with i,j = 0, ..., n-1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =3a(4) =1a(5) =1a(6) =95a(7) =9a(8) =2a(9) =1a(10) =38057a(11) =979a(12) =53a(13) =5a(14) =1a(15) =207372681a(16) =1417675a(17) =19148a(18) =406a(19) =14a(20) =1a(22) =28665184527a(23) =97432285a(24) =490614a(25) =3612a(26) =42a(27) =1a(31) =8755482505a(32) =14798454a(33) =35442
External references
- oeis: A368026