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A253330 as a simple table

n a(n)
1 676
2 2042
3 6190
4 19312
5 58505
6 173903
7 503944
8 1397185
9 3802746
10 9816070
11 25016754
12 60535988
13 145230766
14 332520929
15 757040896
16 1655009001
17 3605466139
18 7587808715
19 15940578578
20 32532048134
21 66375799304
22 132239420396

[676,2042,6190,19312,58505,173903,503944,1397185,
 3802746,9816070,25016754,60535988,145230766,
 332520929,757040896,1655009001,3605466139,
 7587808715,15940578578,32532048134,66375799304,
 132239420396]

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Last modified September 27 22:01 EDT 2022. Contains 357063 sequences. (Running on oeis4.)