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A167477 as a simple table

n a(n)
0 1
1 3
2 12
3 44
4 149
5 479
6 1487
7 4503
8 13386
9 39226
10 113641
11 326173
12 928957
13 2628459
14 7395624
15 20708264
16 57739517
17 160391483
18 444068171
19 1225831551
20 3374848806
21 9268963318
22 25401364177
23 69472849849
24 189661024249
25 516904018899

[1,3,12,44,149,479,1487,4503,13386,39226,113641,
 326173,928957,2628459,7395624,20708264,57739517,
 160391483,444068171,1225831551,3374848806,
 9268963318,25401364177,69472849849,189661024249,
 516904018899]

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Last modified March 29 00:26 EDT 2024. Contains 371264 sequences. (Running on oeis4.)