A258440 - OEIS

A258440 as a simple table

n	a(n)
1	3
2	11
3	25
4	49
5	84
6	132
7	196
8	278
9	379
10	503
11	651
12	825
13	1028
14	1262
15	1528
16	1830
17	2169
18	2547
19	2967
20	3431
21	3940
22	4498
23	5106
24	5766
25	6481
26	7253
27	8083
28	8975
29	9930
30	10950
31	12038
32	13196
33	14425
34	15729
35	17109
36	18567
37	20106
38	21728
39	23434
40	25228
41	27111
42	29085
43	31153
44	33317
45	35578
46	37940
47	40404
48	42972
49	45647
50	48431

[3,11,25,49,84,132,196,278,379,503,651,825,1028, 1262,1528,1830,2169,2547,2967,3431,3940,4498,5106, 5766,6481,7253,8083,8975,9930,10950,12038,13196, 14425,15729,17109,18567,20106,21728,23434,25228, 27111,29085,31153,33317,35578,37940,40404,42972, 45647,48431]

[3,11,25,49,84,132,196,278,379,503,651,825,1028,
 1262,1528,1830,2169,2547,2967,3431,3940,4498,5106,
 5766,6481,7253,8083,8975,9930,10950,12038,13196,
 14425,15729,17109,18567,20106,21728,23434,25228,
 27111,29085,31153,33317,35578,37940,40404,42972,
 45647,48431]