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A002418 as a simple table

na(n)
00
11
29
335
495
5210
6406
7714
81170
91815
102695
113861
125369
137280
149660
1512580
1616116
1720349
1825365
1931255
2038115
2146046
2255154
2365550
2477350
2590675
26105651
27122409
28141085
29161820
30184760
31210056
32237864
33268345
34301665
35337995

[0,1,9,35,95,210,406,714,1170,1815,2695,3861,5369,
 7280,9660,12580,16116,20349,25365,31255,38115,
 46046,55154,65550,77350,90675,105651,122409,
 141085,161820,184760,210056,237864,268345,301665,
 337995]