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A247390 as a simple table

na(n)
241
340
421
511
611
740
841
920
1011
1110
1241
1340
1421
1511
1611
1740
1841
1920
2011
2110
2241
2340
2421
2511
2611
2740
2841
2920
3011
3110
3241
3340
3421
3511
3611
3740
3841
3920
4011
4110
4241
4340
4421
4511
4611
4740
4841
4920
5011
5110
5241
5340
5421
5511
5611
5740
5841
5920
6011
6110
6241
6340
6421
6511
6611
6740

[41,40,21,11,11,40,41,20,11,10,41,40,21,11,11,40,
 41,20,11,10,41,40,21,11,11,40,41,20,11,10,41,40,
 21,11,11,40,41,20,11,10,41,40,21,11,11,40,41,20,
 11,10,41,40,21,11,11,40,41,20,11,10,41,40,21,11,
 11,40]