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A217748 as a simple table

n a(n)
3 1
4 4
5 10
6 18
7 28
8 40
9 54
10 70
11 88
12 108
13 130
14 154
15 180
16 208
17 238
18 270
19 304
20 340
21 378
22 418
23 460
24 504
25 550
26 598
27 648
28 700
29 754
30 810
31 868
32 928
33 990
34 1054
35 1120
36 1188
37 1258
38 1330
39 1404
40 1480
41 1558
42 1638
43 1720
44 1804
45 1890
46 1978
47 2068
48 2160
49 2254
50 2350
51 2448
52 2548

[1,4,10,18,28,40,54,70,88,108,130,154,180,208,238,
 270,304,340,378,418,460,504,550,598,648,700,754,
 810,868,928,990,1054,1120,1188,1258,1330,1404,
 1480,1558,1638,1720,1804,1890,1978,2068,2160,2254,
 2350,2448,2548]

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Last modified June 2 11:35 EDT 2020. Contains 334771 sequences. (Running on oeis4.)