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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.)