login

A087623 as a simple table

na(n)
10
20
31
40
50
62
70
80
90
102
110
120
130
141
154
160
170
180
190
200
212
220
230
240
250
260
272
286
290
300
310
320
330
341
350
364
370
380
390
400
410
420
430
442
456
460
470
480
490
500
510
520
530
540
554
560
570
580
590
600
610
620
631
642
654
6610
670
680
690
700
710
720

[0,0,1,0,0,2,0,0,0,2,0,0,0,1,4,0,0,0,0,0,2,0,0,0,
 0,0,2,6,0,0,0,0,0,1,0,4,0,0,0,0,0,0,0,2,6,0,0,0,0,
 0,0,0,0,0,4,0,0,0,0,0,0,0,1,2,4,10,0,0,0,0,0,0]