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A063287 as a simple table

na(n)
2-1
31
44
56
68
710
812
912
1016
1116
1220
1322
1424
1522
1628
1728
1832
1932
2036
2134
2240
2338
2444
2544
2648
2744
2852
2950
3056
3154
3260
3356
3464
3560
3668
3766
3872
3966
4076
4172
4280
4376
4484
4578
4688
4782
4892
4988
5096
5188
52100
5394
54104
5598
56108
57100
58112
59104
60116
61110
62120
63110

[-1,1,4,6,8,10,12,12,16,16,20,22,24,22,28,28,32,
 32,36,34,40,38,44,44,48,44,52,50,56,54,60,56,64,
 60,68,66,72,66,76,72,80,76,84,78,88,82,92,88,96,
 88,100,94,104,98,108,100,112,104,116,110,120,110]