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A036700 as a simple table

na(n)
00
11
22
34
47
511
615
720
826
933
1041
1149
1257
1368
1479
1591
16102
17115
18129
19144
20160
21175
22193
23210
24228
25249
26269
27290
28311
29333
30357
31380
32406
33431
34458
35487
36512
37542
38570
39603
40634
41664
42697
43730
44766
45802
46835
47872
48909
49948
50988

[0,1,2,4,7,11,15,20,26,33,41,49,57,68,79,91,102,
 115,129,144,160,175,193,210,228,249,269,290,311,
 333,357,380,406,431,458,487,512,542,570,603,634,
 664,697,730,766,802,835,872,909,948,988]