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A001980 as a simple table

n a(n)
0 0
1 1
2 4
3 10
4 23
5 48
6 94
7 166
8 285
9 464
10 734
11 1109
12 1646
13 2371
14 3366
15 4652
16 6357
17 8519
18 11309
19 14754
20 19103
21 24399
22 30956
23 38797
24 48355
25 59665
26 73264
27 89145
28 108011
29 129864
30 155554
31 185017
32 219336
33 258438
34 303604
35 354665
36 413213
37 479048
38 554033

[0,1,4,10,23,48,94,166,285,464,734,1109,1646,2371,
 3366,4652,6357,8519,11309,14754,19103,24399,30956,
 38797,48355,59665,73264,89145,108011,129864,
 155554,185017,219336,258438,303604,354665,413213,
 479048,554033]

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Last modified April 23 08:33 EDT 2024. Contains 371905 sequences. (Running on oeis4.)