Expansion of Sum_{k>=0} x^(2*k)/Product_{j=1..k} (1 - 3 * j * x).
A353262
Expansion of Sum_{k>=0} x^(2*k)/Product_{j=1..k} (1 - 3 * j * x).
Terms
- a(0) =1a(1) =0a(2) =1a(3) =3a(4) =10a(5) =36a(6) =145a(7) =666a(8) =3466a(9) =19956a(10) =124111a(11) =821601a(12) =5755987a(13) =42634089a(14) =333827776a(15) =2759262897a(16) =24000288202a(17) =218806121205
External references
- oeis: A353262