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A220443 as a simple table

n a(n)
0 0
1 9
2 45
3 126
4 270
5 495
6 819
7 1260
8 1836
9 2565
10 3465
11 4554
12 5850
13 7371
14 9135
15 11160
16 13464
17 16065
18 18981
19 22230
20 25830
21 29799
22 34155
23 38916
24 44100
25 49725
26 55809
27 62370
28 69426
29 76995
30 85095
31 93744
32 102960
33 112761
34 123165
35 134190
36 145854
37 158175
38 171171
39 184860
40 199260

[0,9,45,126,270,495,819,1260,1836,2565,3465,4554,
 5850,7371,9135,11160,13464,16065,18981,22230,
 25830,29799,34155,38916,44100,49725,55809,62370,
 69426,76995,85095,93744,102960,112761,123165,
 134190,145854,158175,171171,184860,199260]

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Last modified April 18 06:24 EDT 2024. Contains 371769 sequences. (Running on oeis4.)