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A270091 as a simple table

na(n)
01
15
28
320
420
532
648
756
888
956
1096
1184
12140
13128
14180
15272
16260
17176
18312
19240
20328
21280
22408
23400
24552
25308
26536
27476
28748
29560
30848
31784
321064
33768
341092
35828
361044
37928
381068
391196
401100
411124
421332
431408
441660
451472
461560
471716
482180
491684
502056

[1,5,8,20,20,32,48,56,88,56,96,84,140,128,180,272,
 260,176,312,240,328,280,408,400,552,308,536,476,
 748,560,848,784,1064,768,1092,828,1044,928,1068,
 1196,1100,1124,1332,1408,1660,1472,1560,1716,2180,
 1684,2056]