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A197092 as a simple table

n a(n)
1 1
2 7
3 18
4 55
5 163
6 484
7 1439
8 4275
9 12704
10 37749
11 112171
12 333314
13 990437
14 2943067
15 8745274
16 25986435
17 77218255
18 229452748
19 681814987
20 2026001783
21 6020230272
22 17889013145
23 53156902119
24 157954841890
25 469360159865
26 1394695832255

[1,7,18,55,163,484,1439,4275,12704,37749,112171,
 333314,990437,2943067,8745274,25986435,77218255,
 229452748,681814987,2026001783,6020230272,
 17889013145,53156902119,157954841890,469360159865,
 1394695832255]

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)