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A015445 as a simple table

n a(n)
0 1
1 1
2 10
3 19
4 109
5 280
6 1261
7 3781
8 15130
9 49159
10 185329
11 627760
12 2295721
13 7945561
14 28607050
15 100117099
16 357580549
17 1258634440
18 4476859381
19 15804569341
20 56096303770
21 198337427839
22 703204161769
23 2488241012320

[1,1,10,19,109,280,1261,3781,15130,49159,185329,
 627760,2295721,7945561,28607050,100117099,
 357580549,1258634440,4476859381,15804569341,
 56096303770,198337427839,703204161769,
 2488241012320]

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Last modified November 21 01:33 EST 2019. Contains 329349 sequences. (Running on oeis4.)