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A140227 as a simple table

n a(n)
1 1
2 5
3 15
4 35
5 70
6 127
7 215
8 345
9 530
10 785
11 1127
12 1575
13 2150
14 2875
15 3775
16 4877
17 6210
18 7805
19 9695
20 11915
21 14502
22 17495
23 20935
24 24865
25 29330
26 34377
27 40055
28 46415
29 53510
30 61395
31 70127
32 79765
33 90370
34 102005
35 114735
36 128627
37 143750
38 160175
39 177975

[1,5,15,35,70,127,215,345,530,785,1127,1575,2150,
 2875,3775,4877,6210,7805,9695,11915,14502,17495,
 20935,24865,29330,34377,40055,46415,53510,61395,
 70127,79765,90370,102005,114735,128627,143750,
 160175,177975]

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Last modified May 16 04:48 EDT 2021. Contains 343937 sequences. (Running on oeis4.)