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A145920 as a simple table

n a(n)
1 0
2 1
3 5
4 35
5 70
6 210
7 330
8 715
9 1001
10 1820
11 2380
12 3876
13 4845
14 7315
15 8855
16 12650
17 14950
18 20475
19 23751
20 31465
21 35960
22 46376
23 52360
24 66045
25 73815
26 91390
27 101270
28 123410
29 135751
30 163185
31 178365
32 211876
33 230300
34 270725
35 292825
36 341055
37 367290
38 424270

[0,1,5,35,70,210,330,715,1001,1820,2380,3876,4845,
 7315,8855,12650,14950,20475,23751,31465,35960,
 46376,52360,66045,73815,91390,101270,123410,
 135751,163185,178365,211876,230300,270725,292825,
 341055,367290,424270]

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Last modified April 23 05:20 EDT 2024. Contains 371906 sequences. (Running on oeis4.)