Matrix cube of triangle U = A136228, read by rows.

Terms

a(0) =1a(1) =3a(2) =1a(3) =21a(4) =12a(5) =1a(6) =208a(7) =156a(8) =21a(9) =1a(10) =2637a(11) =2350a(12) =399a(13) =30a(14) =1a(15) =40731a(16) =41034a(17) =8029a(18) =750a(19) =39a(20) =1a(21) =742620a(22) =821562a(23) =177198a(24) =18865a(25) =1209a(26) =48a(27) =1a(28) =15624420a(29) =18631332