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A218575 as a simple table

na(n)
01
11
22
35
411
526
656
7125
8269
9578
101228
112600
125447
1311366
1423575
1548664
1699950
17204383
18416196
19844299
201706368
213436555
226898255
2313803732
2427539833
2554788703
26108703105
27215112006
28424628345
29836218453
301643005834
313221104945
326301628342
3312303151494

[1,1,2,5,11,26,56,125,269,578,1228,2600,5447,
 11366,23575,48664,99950,204383,416196,844299,
 1706368,3436555,6898255,13803732,27539833,
 54788703,108703105,215112006,424628345,836218453,
 1643005834,3221104945,6301628342,12303151494]