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A253531 as a simple table

n a(n)
1 85663
2 176266
3 327147
4 949158
5 1744459
6 4292539
7 8304638
8 18590483
9 37412196
10 79632497
11 161715507
12 333968028
13 674473122
14 1366396447
15 2737489031
16 5482593881
17 10922295848
18 21751547857
19 43229912120
20 85944892631
21 170816625840

[85663,176266,327147,949158,1744459,4292539,
 8304638,18590483,37412196,79632497,161715507,
 333968028,674473122,1366396447,2737489031,
 5482593881,10922295848,21751547857,43229912120,
 85944892631,170816625840]

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Last modified March 25 22:04 EDT 2023. Contains 361529 sequences. (Running on oeis4.)