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A240204 as a simple table

na(n)
00
11
21
31
43
53
66
76
811
914
1020
1125
1238
1345
1464
1585
16108
17140
18190
19227
20303
21387
22473
23606
24785
25926
261183
271496
281816
292208
302778
313345
324170
334990
346031
357424
369097
3710558
3812926
3915750
4018900
4121987
4226660
4331838
4438392
4544798
4652731
4763184
4875620

[0,1,1,1,3,3,6,6,11,14,20,25,38,45,64,85,108,140,
 190,227,303,387,473,606,785,926,1183,1496,1816,
 2208,2778,3345,4170,4990,6031,7424,9097,10558,
 12926,15750,18900,21987,26660,31838,38392,44798,
 52731,63184,75620]