q-factorial numbers 3!_q.

Terms

a(0) =1a(1) =6a(2) =21a(3) =52a(4) =105a(5) =186a(6) =301a(7) =456a(8) =657a(9) =910a(10) =1221a(11) =1596a(12) =2041a(13) =2562a(14) =3165a(15) =3856a(16) =4641a(17) =5526a(18) =6517a(19) =7620a(20) =8841a(21) =10186a(22) =11661a(23) =13272a(24) =15025a(25) =16926a(26) =18981a(27) =21196a(28) =23577a(29) =26130