Erlang C queues type triangular sequence based on A122525.

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =3a(6) =6a(7) =9a(8) =22a(9) =41a(10) =24a(11) =64a(12) =266a(13) =708a(14) =1486a(15) =120a(16) =625a(17) =4536a(18) =17457a(19) =48088a(20) =108129a(21) =720a(22) =7776a(23) =100392a(24) =563088a(25) =2043864a(26) =5709120a(27) =13399176a(28) =5040a(29) =117649