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A254215 as a simple table

n a(n)
1 3
2 2
3 12
4 24
5 70
6 192
7 633
8 2484
9 10554
10 35054
11 102520
12 337948
13 1366804
14 6000028
15 24951622
16 94266262
17 337342046
18 1263530794
19 5269371063
20 23209051416
21 98571237345
22 383041820280
23 1353435250769
24 4542413798878
25 16490190511798
26 76615460665948
27 434914649543770

[3,2,12,24,70,192,633,2484,10554,35054,102520,
 337948,1366804,6000028,24951622,94266262,
 337342046,1263530794,5269371063,23209051416,
 98571237345,383041820280,1353435250769,
 4542413798878,16490190511798,76615460665948,
 434914649543770]

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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)