login

A278881 as a simple table

na(n)
01
11
20
31
42
50
61
78
83
90
101
1120
1230
134
140
151
1640
17147
1880
195
200
211
2270
23504
24672
25175
266
270
281
29112
301386
313600
322310
33336
347
350
361
37168
383276
3914520
4018150
416552
42588
438
440
451
46240
476930
4848048
49102245
5072072
5116170
52960
539
540
551
56330
5713464
58137280
59455455
60546546
61240240
6235904
631485
6410
650
661
67440
6824453
69350064
701701700
713179904
722382380
73700128
7473359
752200
7611
770
781
79572
8042042
81815100
825542680
8315148224
8417672928
858868288
861833975
87140140
883146
8912
900

[1,1,0,1,2,0,1,8,3,0,1,20,30,4,0,1,40,147,80,5,0,
 1,70,504,672,175,6,0,1,112,1386,3600,2310,336,7,0,
 1,168,3276,14520,18150,6552,588,8,0,1,240,6930,
 48048,102245,72072,16170,960,9,0,1,330,13464,
 137280,455455,546546,240240,35904,1485,10,0,1,440,
 24453,350064,1701700,3179904,2382380,700128,73359,
 2200,11,0,1,572,42042,815100,5542680,15148224,
 17672928,8868288,1833975,140140,3146,12,0]