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A279269 as a simple table

n a(n)
0 1
1 7
2 53
3 391
4 2865
5 20967
6 153413
7 1122471
8 8212705
9 60089287
10 439650773
11 3216759751
12 23535824145
13 172202794407
14 1259943234533
15 9218531904231
16 67448539061185
17 493495652968327
18 3610722528440693
19 26418301962683911
20 193292803059267825
21 1414250914660723047

[1,7,53,391,2865,20967,153413,1122471,8212705,
 60089287,439650773,3216759751,23535824145,
 172202794407,1259943234533,9218531904231,
 67448539061185,493495652968327,3610722528440693,
 26418301962683911,193292803059267825,
 1414250914660723047]

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Last modified January 27 15:14 EST 2020. Contains 331295 sequences. (Running on oeis4.)