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A013921 as a simple table

n a(n)
1 4
2 10
3 18
4 27
5 49
6 63
7 78
8 94
9 112
10 132
11 153
12 175
13 224
14 250
15 305
16 335
17 400
18 434
19 469
20 505
21 543
22 582
23 622
24 664
25 708
26 753
27 799
28 847
29 896
30 946
31 1158
32 1214
33 1271
34 1329
35 1389
36 1514
37 1578
38 1643
39 1846
40 1916
41 1988
42 2062
43 2290
44 2368
45 2448
46 2529
47 2611
48 2695
49 2780
50 2866

[4,10,18,27,49,63,78,94,112,132,153,175,224,250,
 305,335,400,434,469,505,543,582,622,664,708,753,
 799,847,896,946,1158,1214,1271,1329,1389,1514,
 1578,1643,1846,1916,1988,2062,2290,2368,2448,2529,
 2611,2695,2780,2866]

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Last modified May 20 18:46 EDT 2024. Contains 372720 sequences. (Running on oeis4.)