Triangle of coefficients of polynomials u(n,x) jointly generated with A209418; see the Formula section.

A209417

Triangle of coefficients of polynomials u(n,x) jointly generated with A209418; see the Formula section.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =1a(6) =1a(7) =5a(8) =11a(9) =1a(10) =1a(11) =8a(12) =18a(13) =26a(14) =1a(15) =1a(16) =9a(17) =38a(18) =56a(19) =57a(20) =1a(21) =1a(22) =12a(23) =51a(24) =142a(25) =159a(26) =120a(27) =1a(28) =1a(29) =13

External references