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A049664 as a simple table

n a(n)
0 0
1 1
2 19
3 342
4 6138
5 110143
6 1976437
7 35465724
8 636406596
9 11419853005
10 204920947495
11 3677157201906
12 65983908686814
13 1184033199160747
14 21246613676206633
15 381255012972558648
16 6841343619829849032
17 122762930143964723929
18 2202891398971535181691 

[0,1,19,342,6138,110143,1976437,35465724,
 636406596,11419853005,204920947495,3677157201906,
 65983908686814,1184033199160747,21246613676206633,
 381255012972558648,6841343619829849032,
 122762930143964723929,2202891398971535181691]

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Last modified April 24 15:52 EDT 2024. Contains 371961 sequences. (Running on oeis4.)