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A250903 as a simple table

n a(n)
1 4213
2 15111
3 44525
4 119359
5 305429
6 764315
7 1893433
8 4673299
9 11537593
10 28584535
11 71295237
12 179606071
13 458428429
14 1188689987
15 3137057025
16 8433329995
17 23088675409
18 64300637535
19 181823356333
20 520893887439
21 1508445493253

[4213,15111,44525,119359,305429,764315,1893433,
 4673299,11537593,28584535,71295237,179606071,
 458428429,1188689987,3137057025,8433329995,
 23088675409,64300637535,181823356333,520893887439,
 1508445493253]

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Last modified March 20 21:07 EDT 2023. Contains 361391 sequences. (Running on oeis4.)