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A299570 as a simple table

n a(n)
1 2
2 13
3 25
4 78
5 237
6 844
7 2604
8 8136
9 26760
10 86924
11 277835
12 899022
13 2919889
14 9444839
15 30500170
16 98689584
17 319463193
18 1033422691
19 3342846428
20 10816675277
21 34999690964
22 113237813316
23 366379979168
24 1185473942356
25 3835735125264

[2,13,25,78,237,844,2604,8136,26760,86924,277835,
 899022,2919889,9444839,30500170,98689584,
 319463193,1033422691,3342846428,10816675277,
 34999690964,113237813316,366379979168,
 1185473942356,3835735125264]

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Last modified April 25 11:39 EDT 2024. Contains 371969 sequences. (Running on oeis4.)