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A144959 as a simple table

n a(n)
0 1
1 0
2 1
3 2
4 5
5 11
6 30
7 78
8 223
9 658
10 2026
11 6429
12 21015
13 70233
14 239360
15 829224
16 2912947
17 10356334
18 37205121
19 134887153
20 493000086
21 1814902409
22 6724595543
23 25061885217
24 93899071368
25 353514105817
26 1336822098961
27 5075833932200

[1,0,1,2,5,11,30,78,223,658,2026,6429,21015,70233,
 239360,829224,2912947,10356334,37205121,134887153,
 493000086,1814902409,6724595543,25061885217,
 93899071368,353514105817,1336822098961,
 5075833932200]

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Last modified April 16 14:17 EDT 2024. Contains 371740 sequences. (Running on oeis4.)