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A036216 as a simple table

n a(n)
0 1
1 12
2 90
3 540
4 2835
5 13608
6 61236
7 262440
8 1082565
9 4330260
10 16888014
11 64481508
12 241805655
13 892820880
14 3252418920
15 11708708112
16 41712272649
17 147219785820
18 515269250370
19 1789882659180
20 6175095174171
21 21171754882872

[1,12,90,540,2835,13608,61236,262440,1082565,
 4330260,16888014,64481508,241805655,892820880,
 3252418920,11708708112,41712272649,147219785820,
 515269250370,1789882659180,6175095174171,
 21171754882872]

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Last modified May 10 16:45 EDT 2024. Contains 372387 sequences. (Running on oeis4.)