Partial sums of A162436.

Terms

a(0) =1a(1) =4a(2) =7a(3) =16a(4) =25a(5) =52a(6) =79a(7) =160a(8) =241a(9) =484a(10) =727a(11) =1456a(12) =2185a(13) =4372a(14) =6559a(15) =13120a(16) =19681a(17) =39364a(18) =59047a(19) =118096a(20) =177145a(21) =354292a(22) =531439a(23) =1062880a(24) =1594321a(25) =3188644a(26) =4782967a(27) =9565936a(28) =14348905a(29) =28697812