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A227590
as a simple table
n
a(n)
1
1
2
2
3
4
4
7
5
12
6
18
7
26
8
35
9
45
10
56
11
73
12
86
13
107
14
128
15
152
16
178
17
200
18
217
19
247
20
284
21
334
22
357
23
373
24
426
25
481
26
493
27
554
[1,2,4,7,12,18,26,35,45,56,73,86,107,128,152,178, 200,217,247,284,334,357,373,426,481,493,554]
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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)