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A253320 as a simple table

n a(n)
1 44
2 126
3 377
4 848
5 2042
6 4218
7 9228
8 18482
9 38621
10 76654
11 156631
12 310658
13 627864
14 1247558
15 2507954
16 4993614
17 10012411
18 19968402
19 39986317
20 79836334
21 159770246
22 319221314
23 638635272
24 1276539506
25 2553459769
26 5105272678
27 10211298371

[44,126,377,848,2042,4218,9228,18482,38621,76654,
 156631,310658,627864,1247558,2507954,4993614,
 10012411,19968402,39986317,79836334,159770246,
 319221314,638635272,1276539506,2553459769,
 5105272678,10211298371]

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Last modified October 6 00:49 EDT 2022. Contains 357261 sequences. (Running on oeis4.)