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A007887 as a simple table

na(n)
00
11
21
32
43
55
68
74
83
97
101
118
120
138
148
157
166
174
181
195
206
212
228
231
240
251
261
272
283
295
308
314
323
337
341
358
360
378
388
397
406
414
421
435
446
452
468
471
480
491
501
512
523
535
548
554
563
577
581
598
600
618
628
637
646
654
661
675
686
692
708
711
720
731
741
752
763
775
788
794
803

[0,1,1,2,3,5,8,4,3,7,1,8,0,8,8,7,6,4,1,5,6,2,8,1,
 0,1,1,2,3,5,8,4,3,7,1,8,0,8,8,7,6,4,1,5,6,2,8,1,0,
 1,1,2,3,5,8,4,3,7,1,8,0,8,8,7,6,4,1,5,6,2,8,1,0,1,
 1,2,3,5,8,4,3]