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A344993 as a simple table

na(n)
00
14
220
368
4168
5368
6676
71184
81912
92944
104292
116152
128456
1311484
1415164
1519624
1624944
1731508
1839076
1948212
2058656
2170672
2284284
23100192
24117888
25138100
26160580
27185796
28213568
29245008
30279116
31317424
32359280
33405124
34454868
35509264
36567640
37631988
38701228
39776032
40855968
41943260
421035844

[0,4,20,68,168,368,676,1184,1912,2944,4292,6152,
 8456,11484,15164,19624,24944,31508,39076,48212,
 58656,70672,84284,100192,117888,138100,160580,
 185796,213568,245008,279116,317424,359280,405124,
 454868,509264,567640,631988,701228,776032,855968,
 943260,1035844]