A303749 - OEIS

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A303749 as a simple table

n	a(n)
1	1
2	2
3	4
4	7
5	16
6	19
7	52
8	55
9	160
10	163
11	484
12	487
13	1456
14	1459
15	4372
16	4375
17	13120
18	13123
19	39364
20	39367
21	118096
22	118099
23	354292
24	354295

[1,2,4,7,16,19,52,55,160,163,484,487,1456,1459, 4372,4375,13120,13123,39364,39367,118096,118099, 354292,354295]