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A304963 as a simple table

n a(n)
0 1
1 1
2 4
3 10
4 31
5 82
6 241
7 664
8 1898
9 5316
10 15058
11 42374
12 119718
13 337432
14 952373
15 2685906
16 7578248
17 21376331
18 60306495
19 170120330
20 479922212
21 1353855927
22 3819280961
23 10774233218
24 30394408336
25 85743168417
26 241883489742
27 682358211402
28 1924947591447
29 5430317571250
30 15319043353639

[1,1,4,10,31,82,241,664,1898,5316,15058,42374,
 119718,337432,952373,2685906,7578248,21376331,
 60306495,170120330,479922212,1353855927,
 3819280961,10774233218,30394408336,85743168417,
 241883489742,682358211402,1924947591447,
 5430317571250,15319043353639]

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Last modified August 10 07:25 EDT 2020. Contains 336368 sequences. (Running on oeis4.)