Square array A(n,k), read by antidiagonals: product of two Stern polynomials, B(n,x) and B(k,x), converted to a natural number via prime factorization encoding explained in A297845.

A391259

Square array A(n,k), read by antidiagonals: product of two Stern polynomials, B(n,x) and B(k,x), converted to a natural number via prime factorization encoding explained in A297845.

Terms

    a(0) =2a(1) =3a(2) =3a(3) =6a(4) =5a(5) =6a(6) =5a(7) =15a(8) =15a(9) =5a(10) =18a(11) =7a(12) =90a(13) =7a(14) =18a(15) =15a(16) =75a(17) =35a(18) =35a(19) =75a(20) =15a(21) =30a(22) =35a(23) =1350a(24) =11a(25) =1350a(26) =35a(27) =30a(28) =7a(29) =105

External references