login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A127467 as a simple table

na(n)
11
21
32
42
50
66
72
82
90
108
114
120
130
140
1520
162
174
186
190
200
2112
226
230
240
250
260
270
2842
294
304
310
328
330
340
350
3632
376
380
3912
400
410
420
430
440
4554
464
478
480
490
5020
510
520
530
540
5540

[1,1,2,2,0,6,2,2,0,8,4,0,0,0,20,2,4,6,0,0,12,6,0,
 0,0,0,0,42,4,4,0,8,0,0,0,32,6,0,12,0,0,0,0,0,54,4,
 8,0,0,20,0,0,0,0,40]