A153258 - OEIS

A153258 as a simple table

n	a(n)
1	-4
2	-8
3	-8
4	2
5	28
6	76
7	152
8	262
9	412
10	608
11	856
12	1162
13	1532
14	1972
15	2488
16	3086
17	3772
18	4552
19	5432
20	6418
21	7516
22	8732
23	10072
24	11542
25	13148
26	14896
27	16792
28	18842
29	21052
30	23428
31	25976
32	28702
33	31612
34	34712
35	38008
36	41506
37	45212
38	49132
39	53272
40	57638

[-4,-8,-8,2,28,76,152,262,412,608,856,1162,1532, 1972,2488,3086,3772,4552,5432,6418,7516,8732, 10072,11542,13148,14896,16792,18842,21052,23428, 25976,28702,31612,34712,38008,41506,45212,49132, 53272,57638]