login

A161353 as a simple table

na(n)
31
43
55
64
714
840
916
1017
1125
1224
1335
1434
1544
1654
17125
18124
19135
20134
21144
22154
23235
24234
25244
26254
27354
28444
29454
301354
311444
321454
332354
342444
352454
363454
374444
384454
3914454
4016444
4116454
4217454
4324444
4424454
4534444
4634454
4744454
4854454
49124444
50124454

[1,3,5,4,14,40,16,17,25,24,35,34,44,54,125,124,
 135,134,144,154,235,234,244,254,354,444,454,1354,
 1444,1454,2354,2444,2454,3454,4444,4454,14454,
 16444,16454,17454,24444,24454,34444,34454,44454,
 54454,124444,124454]