login

A391110 as a simple table

na(n)
21
31
42
54
64
78
84
912
108
1116
128
138
1416
1512
1628
1716
1816
1916
2036
2116
2240
2332
2448
2520
2624
2752
2828
2960
3032
3148
3232
3332
3472
3536
3632
3772
3840
3964
4088
4132
4296
4348
4432
45100
4648
4752
48108
49112
5056
5196
52120
5360
54100
5564
5648
5764
58136
5964
60112
6172
6272
63148
64128
65156
6664
6772
6880
69144
7064
71172

[1,1,2,4,4,8,4,12,8,16,8,8,16,12,28,16,16,16,36,
 16,40,32,48,20,24,52,28,60,32,48,32,32,72,36,32,
 72,40,64,88,32,96,48,32,100,48,52,108,112,56,96,
 120,60,100,64,48,64,136,64,112,72,72,148,128,156,
 64,72,80,144,64,172]