The integer-valued quartic beginning: 0, 9, 0, 9, 7.

Terms

a(0) =0a(1) =9a(2) =0a(3) =9a(4) =7a(5) =-100a(6) =-471a(7) =-1330a(8) =-2966a(9) =-5733a(10) =-10050a(11) =-16401a(12) =-25335a(13) =-37466a(14) =-53473a(15) =-74100a(16) =-100156a(17) =-132515a(18) =-172116a(19) =-219963a(20) =-277125a(21) =-344736a(22) =-423995a(23) =-516166a(24) =-622578a(25) =-744625a(26) =-883766a(27) =-1041525a(28) =-1219491a(29) =-1419318