Triangle of coefficients of polynomials u(n,x) jointly generated with A208339; see the Formula section.

A209687

Triangle of coefficients of polynomials u(n,x) jointly generated with A208339; see the Formula section.

Terms

    a(0) =1a(1) =0a(2) =2a(3) =0a(4) =1a(5) =5a(6) =0a(7) =1a(8) =5a(9) =12a(10) =0a(11) =1a(12) =6a(13) =18a(14) =29a(15) =0a(16) =1a(17) =7a(18) =26a(19) =58a(20) =70a(21) =0a(22) =1a(23) =8a(24) =35a(25) =98a(26) =175a(27) =169a(28) =0a(29) =1

External references