Second entry in row n of triangle in A169950.

Terms

a(0) =1a(1) =2a(2) =5a(3) =8a(4) =13a(5) =20a(6) =33a(7) =48a(8) =75a(9) =100a(10) =145a(11) =204a(12) =293a(13) =396a(14) =559a(15) =746a(16) =1027a(17) =1340a(18) =1809a(19) =2342a(20) =3177a(21) =4050a(22) =5369a(23) =6920a(24) =9013a(25) =11360a(26) =14837a(27) =18718a(28) =24081a(29) =29952