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A372473 as a simple table

na(n)
01
12
27
312
421
540
679
7158
8315
91247
101246
112492
124983
139963
1419921
1539845
1679689
17159361
18318726
19637462
201274919
212549835
225099651
2310199302
2420398665
2540797328
2681594627
27163189198
28326378285
29652756723
301305513584
312611027095
325222054082
3310444108052

[1,2,7,12,21,40,79,158,315,1247,1246,2492,4983,
 9963,19921,39845,79689,159361,318726,637462,
 1274919,2549835,5099651,10199302,20398665,
 40797328,81594627,163189198,326378285,652756723,
 1305513584,2611027095,5222054082,10444108052]