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A011901 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 1
5 3
6 6
7 11
8 17
9 26
10 37
11 52
12 69
13 90
14 114
15 143
16 176
17 214
18 257
19 306
20 360
21 420
22 486
23 559
24 639
25 726
26 821
27 923
28 1034
29 1153
30 1282
31 1419
32 1566
33 1722
34 1889
35 2066
36 2254
37 2453
38 2664
39 2886
40 3120
41 3366
42 3625
43 3897
44 4182
45 4481
46 4793
47 5120
48 5461
49 5818
50 6189

[0,0,0,0,1,3,6,11,17,26,37,52,69,90,114,143,176,
 214,257,306,360,420,486,559,639,726,821,923,1034,
 1153,1282,1419,1566,1722,1889,2066,2254,2453,2664,
 2886,3120,3366,3625,3897,4182,4481,4793,5120,5461,
 5818,6189]

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Last modified May 21 07:02 EDT 2024. Contains 372729 sequences. (Running on oeis4.)