Coefficients of polynomials g_b(x) that arise in the generating function for rooted maps (A053979).

Terms

a(0) =1a(1) =3a(2) =5a(3) =15a(4) =65a(5) =60a(6) =105a(7) =804a(8) =1730a(9) =1105a(10) =945a(11) =10824a(12) =39110a(13) =55645a(14) =27120a(15) =10395a(16) =162357a(17) =854250a(18) =1987270a(19) =2105070a(20) =828250a(21) =135135a(22) =2714445a(23) =19180410a(24) =63897550a(25) =108878610a(26) =91692550a(27) =30220800a(28) =2027025a(29) =50301360