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A187760 as a simple table

na(n)
11
23
32
44
51
63
75
83
92
104
116
124
131
143
155
167
175
183
192
204
216
228
236
244
251
263
275
287
299
307
315
323
332
344
356
368
3710
388
396
404
411
423
435
447
459
4611
479
487
495
503
512
524
536
548
5510
5612
5710
588
596
604
611
623
635
647
659
6611

[1,3,2,4,1,3,5,3,2,4,6,4,1,3,5,7,5,3,2,4,6,8,6,4,
 1,3,5,7,9,7,5,3,2,4,6,8,10,8,6,4,1,3,5,7,9,11,9,7,
 5,3,2,4,6,8,10,12,10,8,6,4,1,3,5,7,9,11]