Expansion of g.f. 1/((1-x)*(1-6*x)*(1-7*x)*(1-9*x)).
A023950
Expansion of g.f. 1/((1-x)*(1-6*x)*(1-7*x)*(1-9*x)).
Terms
- a(0) =1a(1) =23a(2) =348a(3) =4378a(4) =49679a(5) =528381a(6) =5380306a(7) =53132816a(8) =513181317a(9) =4875626899a(10) =45752166824a(11) =425305531014
External references
- oeis: A023950