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A266973 as a simple table

na(n)
01
14
216
313
41
54
616
713
81
94
1016
1113
121
134
1416
1513
161
174
1816
1913
201
214
2216
2313
241
254
2616
2713
281
294
3016
3113
321
334
3416
3513
361
374
3816
3913
401
414
4216
4313
441
454
4616
4713
481
494
5016
5113
521
534
5416
5513
561
574
5816
5913
601
614
6216
6313
641
654
6616
6713
681
694
7016
7113
721
734
7416

[1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,
 13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,
 13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16,
 13,1,4,16,13,1,4,16,13,1,4,16,13,1,4,16]