A273375 - OEIS

A273375 as a simple table

n	a(n)
1	4
2	64
3	144
4	324
5	484
6	784
7	1024
8	1444
9	1764
10	2304
11	2704
12	3364
13	3844
14	4624
15	5184
16	6084
17	6724
18	7744
19	8464
20	9604
21	10404
22	11664
23	12544
24	13924
25	14884
26	16384
27	17424
28	19044
29	20164
30	21904
31	23104
32	24964
33	26244
34	28224
35	29584
36	31684
37	33124
38	35344
39	36864
40	39204

[4,64,144,324,484,784,1024,1444,1764,2304,2704, 3364,3844,4624,5184,6084,6724,7744,8464,9604, 10404,11664,12544,13924,14884,16384,17424,19044, 20164,21904,23104,24964,26244,28224,29584,31684, 33124,35344,36864,39204]