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A214282 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 6
6 10
7 15
8 35
9 70
10 126
11 210
12 462
13 924
14 1716
15 3003
16 6435
17 12870
18 24310
19 43758
20 92378
21 184756
22 352716
23 646646
24 1352078
25 2704156
26 5200300
27 9657700
28 20058300
29 40116600
30 77558760
31 145422675

[1,1,1,3,6,10,15,35,70,126,210,462,924,1716,3003,
 6435,12870,24310,43758,92378,184756,352716,646646,
 1352078,2704156,5200300,9657700,20058300,40116600,
 77558760,145422675]

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Last modified February 22 23:03 EST 2019. Contains 320411 sequences. (Running on oeis4.)