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A307411 as a simple table

n a(n)
0 1
1 1
2 4
3 14
4 60
5 267
6 1254
7 6071
8 30156
9 152714
10 785682
11 4094752
12 21573258
13 114709363
14 614777462
15 3317589966
16 18011350796
17 98307220409
18 539121535194
19 2969177051678
20 16415395615190
21 91070109305056
22 506843759000184
23 2828968117483929
24 15831944500607010
25 88818114923080102

[1,1,4,14,60,267,1254,6071,30156,152714,785682,
 4094752,21573258,114709363,614777462,3317589966,
 18011350796,98307220409,539121535194,
 2969177051678,16415395615190,91070109305056,
 506843759000184,2828968117483929,
 15831944500607010,88818114923080102]

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Last modified August 20 03:23 EDT 2024. Contains 375310 sequences. (Running on oeis4.)