2nd row of A341867: a(n) = (n^2+15*n+32)*2^(n-3).

Terms

a(0) =4a(1) =12a(2) =33a(3) =86a(4) =216a(5) =528a(6) =1264a(7) =2976a(8) =6912a(9) =15872a(10) =36096a(11) =81408a(12) =182272a(13) =405504a(14) =897024a(15) =1974272a(16) =4325376a(17) =9437184a(18) =20512768a(19) =44433408a(20) =95944704a(21) =206569472a(22) =443547648a(23) =950009856a(24) =2030043136a(25) =4328521728a(26) =9210691584a(27) =19562233856a(28) =41473277952a(29) =87778394112