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A060581 as a simple table

n a(n)
0 1
1 15
2 81
3 441
4 2151
5 9957
6 43122
7 174162
8 666267
9 2403987
10 8183601
11 26281065
12 79660856
13 228180456
14 618992466
15 1595081266
16 3918506466
17 9211519476
18 20797923546
19 45258309066
20 95225448306
21 194283668576
22 385361919996

[1,15,81,441,2151,9957,43122,174162,666267,
 2403987,8183601,26281065,79660856,228180456,
 618992466,1595081266,3918506466,9211519476,
 20797923546,45258309066,95225448306,194283668576,
 385361919996]

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Last modified September 19 19:46 EDT 2024. Contains 376014 sequences. (Running on oeis4.)