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A249963 as a simple table

n a(n)
1 15
2 897
3 14094
4 111746
5 585069
6 2319123
7 7532380
8 21069828
9 52478667
10 119135973
11 250738026
12 495501318
13 928465577
14 1662329463
15 2861289912
16 4758396424
17 7676971911
18 12056692041
19 18484955334
20 27734216586
21 40805996517
22 58982320859

[15,897,14094,111746,585069,2319123,7532380,
 21069828,52478667,119135973,250738026,495501318,
 928465577,1662329463,2861289912,4758396424,
 7676971911,12056692041,18484955334,27734216586,
 40805996517,58982320859]

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Last modified March 4 03:53 EST 2021. Contains 341779 sequences. (Running on oeis4.)