Matrix 4th power of partition triangle A008284.

Terms

a(0) =1a(1) =4a(2) =1a(3) =10a(4) =4a(5) =1a(6) =26a(7) =14a(8) =4a(9) =1a(10) =55a(11) =36a(12) =14a(13) =4a(14) =1a(15) =121a(16) =91a(17) =40a(18) =14a(19) =4a(20) =1a(21) =237a(22) =202a(23) =101a(24) =40a(25) =14a(26) =4a(27) =1a(28) =468a(29) =439