Rectangular array read by antidiagonals: row q has generating function F_q(x) = sum_{r=0,...,q-1} ((q-r)*(-1)^r*binomial(2*q-r,r)*x^r) / sum_{s=0,...,q} ((-1)^s*binomial(2*q-s,s)*x^s), where q=1,2,....
A185095
Rectangular array read by antidiagonals: row q has generating function F_q(x) = sum_{r=0,...,q-1} ((q-r)*(-1)^r*binomial(2*q-r,r)*x^r) / sum_{s=0,...,q} ((-1)^s*binomial(2*q-s,s)*x^s), where q=1,2,....
Terms
- a(0) =1a(1) =2a(2) =1a(3) =3a(4) =3a(5) =1a(6) =4a(7) =5a(8) =7a(9) =1a(10) =5a(11) =7a(12) =13a(13) =18a(14) =1a(15) =6a(16) =9a(17) =19a(18) =38a(19) =47a(20) =1a(21) =7a(22) =11a(23) =25a(24) =58a(25) =117a(26) =123a(27) =1a(28) =8a(29) =13
External references
- oeis: A185095