Triangular array T(n,k) read by antidiagonals: T(2,1) = 1; otherwise T(n,k) = p(n)!/(p(k)!*p(n-k)!), where p(0)=1 and p(m)=prime(m) for m > 0.

A360207

Triangular array T(n,k) read by antidiagonals: T(2,1) = 1; otherwise T(n,k) = p(n)!/(p(k)!*p(n-k)!), where p(0)=1 and p(m)=prime(m) for m > 0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =10a(8) =10a(9) =1a(10) =1a(11) =21a(12) =140a(13) =21a(14) =1a(15) =1a(16) =3960a(17) =55440a(18) =55440a(19) =3960a(20) =1a(21) =1a(22) =78a(23) =205920a(24) =432432a(25) =205920a(26) =78a(27) =1a(28) =1a(29) =28560

External references