Second differences of eighth powers (A001016).

Terms

a(0) =1a(1) =254a(2) =6050a(3) =52670a(4) =266114a(5) =963902a(6) =2796194a(7) =6927230a(8) =15257090a(9) =30683774a(10) =57405602a(11) =101263934a(12) =170126210a(13) =274309310a(14) =427043234a(15) =644975102a(16) =948713474a(17) =1363412990a(18) =1919399330a(19) =2652834494a(20) =3606422402a(21) =4830154814a(22) =6382097570a(23) =8329217150a(24) =10748247554