Triangle of coefficients of polynomials u(n,x) jointly generated with A210218; see the Formula section.
A210217
Triangle of coefficients of polynomials u(n,x) jointly generated with A210218; see the Formula section.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =2a(4) =5a(5) =1a(6) =2a(7) =6a(8) =12a(9) =1a(10) =2a(11) =6a(12) =19a(13) =27a(14) =1a(15) =2a(16) =6a(17) =20a(18) =57a(19) =58a(20) =1a(21) =2a(22) =6a(23) =20a(24) =67a(25) =160a(26) =121a(27) =1a(28) =2a(29) =6
External references
- oeis: A210217