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A053818 as a simple table

na(n)
11
21
35
410
530
626
791
884
9159
10140
11385
12196
13650
14406
15620
16680
171496
18654
192109
201080
211806
221650
233795
241544
254150
262756
274365
283164
297714
302360
319455
325456
337370
346256
359940
365196
3716206
388778
3912324
408560
4122140
426972
4325585

[1,1,5,10,30,26,91,84,159,140,385,196,650,406,620,
 680,1496,654,2109,1080,1806,1650,3795,1544,4150,
 2756,4365,3164,7714,2360,9455,5456,7370,6256,9940,
 5196,16206,8778,12324,8560,22140,6972,25585]