Row sums of A163357 and A163359.

Terms

a(0) =0a(1) =4a(2) =20a(3) =40a(4) =100a(5) =172a(6) =248a(7) =336a(8) =568a(9) =820a(10) =1100a(11) =1400a(12) =1692a(13) =2012a(14) =2352a(15) =2720a(16) =3632a(17) =4580a(18) =5572a(19) =6600a(20) =7700a(21) =8844a(22) =10024a(23) =11248a(24) =12392a(25) =13588a(26) =14844a(27) =16152a(28) =17484a(29) =18876