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A013954 as a simple table

n a(n)
1 1
2 65
3 730
4 4161
5 15626
6 47450
7 117650
8 266305
9 532171
10 1015690
11 1771562
12 3037530
13 4826810
14 7647250
15 11406980
16 17043521
17 24137570
18 34591115
19 47045882
20 65019786
21 85884500
22 115151530
23 148035890

[1,65,730,4161,15626,47450,117650,266305,532171,
 1015690,1771562,3037530,4826810,7647250,11406980,
 17043521,24137570,34591115,47045882,65019786,
 85884500,115151530,148035890]

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Last modified March 2 06:30 EST 2021. Contains 341743 sequences. (Running on oeis4.)