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A247921 as a simple table

n a(n)
1 203
2 529
3 1387
4 3649
5 9611
6 25265
7 66443
8 174817
9 460139
10 1211409
11 3189259
12 8396641
13 22107499
14 58209297
15 153270315
16 403580257
17 1062688075
18 2798238641
19 7368281835
20 19402138145
21 51089798827
22 134530145105
23 354246523595

[203,529,1387,3649,9611,25265,66443,174817,460139,
 1211409,3189259,8396641,22107499,58209297,
 153270315,403580257,1062688075,2798238641,
 7368281835,19402138145,51089798827,134530145105,
 354246523595]

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Last modified May 22 12:28 EDT 2022. Contains 353950 sequences. (Running on oeis4.)