Number of quasi-abelian ideals in the affine Lie algebra sl_n^{hat}.
A200613
Number of quasi-abelian ideals in the affine Lie algebra sl_n^{hat}.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =44a(4) =183a(5) =774a(6) =3294a(7) =14034a(8) =59711a(9) =253430a(10) =1072506a(11) =4525168a(12) =19036726a(13) =79861404a(14) =334155036a(15) =1394789214a(16) =5808981711a(17) =24143440374a(18) =100156051746a(19) =414762312504
External references
- oeis: A200613