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A209001 as a simple table

n a(n)
1 1
2 1
3 1
4 3
5 5
6 10
7 23
8 66
9 167
10 445
11 1171
12 3167
13 8569
14 23618
15 65589
16 183955
17 518183
18 1467671
19 4172881
20 11913595
21 34128769
22 98093579
23 282770735
24 817397180
25 2368770203 

[1,1,1,3,5,10,23,66,167,445,1171,3167,8569,23618,
 65589,183955,518183,1467671,4172881,11913595,
 34128769,98093579,282770735,817397180,2368770203]

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Last modified April 25 01:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)