login

A287618 as a simple table

na(n)
11
22
31
43
53
62
73
83
94
102
114
124
135
145
153
164
174
185
195
206
213
225
235
246
256
267
277
284
295
305
316
326
337
347
358
364
376
386
397
407
418
428
439
449
455
466
476
487
497
508
518
529
539
5410
555
567
577
588
598
609
619
6210
6310
6411
6511
666
677
687
698
708
719
729
7310
7410
7511
7611
7712
786
798
808
819
829
8310
8410
8511
8611
8712
8812
8913
9013
917
928
938
949
959
9610
9710
9811
9911
10012
10112
10213
10313
10414
1057

[1,2,1,3,3,2,3,3,4,2,4,4,5,5,3,4,4,5,5,6,3,5,5,6,
 6,7,7,4,5,5,6,6,7,7,8,4,6,6,7,7,8,8,9,9,5,6,6,7,7,
 8,8,9,9,10,5,7,7,8,8,9,9,10,10,11,11,6,7,7,8,8,9,
 9,10,10,11,11,12,6,8,8,9,9,10,10,11,11,12,12,13,
 13,7,8,8,9,9,10,10,11,11,12,12,13,13,14,7]