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A173661 as a simple table

n a(n)
1 1
2 7
3 16
4 47
5 121
6 322
7 841
8 2207
9 5776
10 15127
11 39601
12 103682
13 271441
14 710647
15 1860496
16 4870847
17 12752041
18 33385282
19 87403801
20 228826127
21 599074576
22 1568397607
23 4106118241
24 10749957122
25 28143753121
26 73681302247
27 192900153616
28 505019158607

[1,7,16,47,121,322,841,2207,5776,15127,39601,
 103682,271441,710647,1860496,4870847,12752041,
 33385282,87403801,228826127,599074576,1568397607,
 4106118241,10749957122,28143753121,73681302247,
 192900153616,505019158607]

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Last modified December 5 06:52 EST 2021. Contains 349543 sequences. (Running on oeis4.)