login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

A156031 as a simple table

na(n)
11
22
33
45
54
69
76
815
97
1022
118
1230
1310
1440
1511
1651
1712
1863
1913
2076
2114
2290
2316
24106
2517
26123
2718
28141
2919
30160
3120
32180
3321
34201
3523
36224
3724
38248
3925
40273
4126
42299
4327
44326
4528
46354
4729
48383
4931
50414
5132
52446
5333
54479
5534
56513
5735
58548
5936
60584
6137
62621
6338
64659
6539
66698

[1,2,3,5,4,9,6,15,7,22,8,30,10,40,11,51,12,63,13,
 76,14,90,16,106,17,123,18,141,19,160,20,180,21,
 201,23,224,24,248,25,273,26,299,27,326,28,354,29,
 383,31,414,32,446,33,479,34,513,35,548,36,584,37,
 621,38,659,39,698]