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A151250 as a simple table

n a(n)
0 1
1 4
2 17
3 81
4 387
5 1882
6 9239
7 45476
8 225097
9 1115850
10 5543901
11 27581511
12 137343231
13 684560964
14 3413759073
15 17033098407
16 85017930387
17 424482793264
18 2119935547247
19 10589260095977
20 52903520205067
21 264337253519526
22 1320934285008687
23 6601511476525466
24 32994205139235397
25 164914905473037574

[1,4,17,81,387,1882,9239,45476,225097,1115850,
 5543901,27581511,137343231,684560964,3413759073,
 17033098407,85017930387,424482793264,
 2119935547247,10589260095977,52903520205067,
 264337253519526,1320934285008687,6601511476525466,
 32994205139235397,164914905473037574]

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Last modified August 28 15:46 EDT 2024. Contains 375507 sequences. (Running on oeis4.)