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A000991 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 12
5 21
6 40
7 67
8 117
9 193
10 319
11 510
12 818
13 1274
14 1983
15 3032
16 4610
17 6915
18 10324
19 15235
20 22371
21 32554
22 47119
23 67689
24 96763
25 137404
26 194211
27 272939
28 381872
29 531576
30 736923
31 1016904
32 1397853
33 1913561
34 2610023
35 3546507
36 4802694
37 6481101
38 8718309
39 11689929
40 15627591
41 20828892

[1,1,3,6,12,21,40,67,117,193,319,510,818,1274,
 1983,3032,4610,6915,10324,15235,22371,32554,47119,
 67689,96763,137404,194211,272939,381872,531576,
 736923,1016904,1397853,1913561,2610023,3546507,
 4802694,6481101,8718309,11689929,15627591,
 20828892]

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Last modified April 23 21:25 EDT 2019. Contains 322388 sequences. (Running on oeis4.)