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A018855 as a simple table

n a(n)
1 1
2 21
3 3
4 45
5 55
6 6
7 78
8 820
9 91
10 10
11 1128
12 120
13 136
14 1431
15 15
16 1653
17 171
18 1830
19 190
20 2016
21 21
22 2211
23 231
24 2415
25 253
26 2628
27 276
28 28
29 2926
30 300
31 3160
32 325
33 3321
34 3403
35 351
36 36
37 378
38 3828
39 3916
40 406
41 4186
42 4278
43 435
44 4465
45 45
46 465
47 4753
48 4851
49 496
50 5050
51 5151
52 528

[1,21,3,45,55,6,78,820,91,10,1128,120,136,1431,15,
 1653,171,1830,190,2016,21,2211,231,2415,253,2628,
 276,28,2926,300,3160,325,3321,3403,351,36,378,
 3828,3916,406,4186,4278,435,4465,45,465,4753,4851,
 496,5050,5151,528]

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Last modified August 2 04:47 EDT 2024. Contains 374821 sequences. (Running on oeis4.)