Triangle read by rows, related to A108283.

Terms

a(0) =1a(1) =3a(2) =2a(3) =6a(4) =11a(5) =6a(6) =10a(7) =39a(8) =54a(9) =24a(10) =15a(11) =114a(12) =304a(13) =324a(14) =120a(15) =21a(16) =300a(17) =1384a(18) =2664a(19) =2280a(20) =720a(21) =28a(22) =741a(23) =5598a(24) =17364a(25) =25800a(26) =18360a(27) =5040a(28) =36a(29) =1757