Expansion of g.f. 1/((1-2x)(1-3x)(1-9x)(1-11x)).
A025953
Expansion of g.f. 1/((1-2x)(1-3x)(1-9x)(1-11x)).
Terms
- a(0) =1a(1) =25a(2) =420a(3) =5990a(4) =78431a(5) =976275a(6) =11762890a(7) =138612880a(8) =1607750661a(9) =18432396125a(10) =209480782160
External references
- oeis: A025953