Triangle of coefficients of polynomials u(n,x) jointly generated with A208930; see the Formula section.

A208909

Triangle of coefficients of polynomials u(n,x) jointly generated with A208930; see the Formula section.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =1a(4) =6a(5) =6a(6) =1a(7) =10a(8) =20a(9) =16a(10) =1a(11) =14a(12) =42a(13) =68a(14) =44a(15) =1a(16) =18a(17) =72a(18) =172a(19) =220a(20) =120a(21) =1a(22) =22a(23) =110a(24) =344a(25) =648a(26) =696a(27) =328a(28) =1a(29) =26

External references