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A277503 as a simple table

na(n)
00
11
22
37
448
5469
65584
780235
81367040
926840841
10595623680
1114752565807
12403579762688
1312084385256605
14393093330282496
1513804177426246995
16520496287836012544
1720973496057176404881
18899452315670554017792
1940903215737685386469847

[0,1,2,7,48,469,5584,80235,1367040,26840841,
 595623680,14752565807,403579762688,12084385256605,
 393093330282496,13804177426246995,
 520496287836012544,20973496057176404881,
 899452315670554017792,40903215737685386469847]