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A307748 as a simple table

na(n)
12412134003
22742300437
3141753400357
4171450034753
5191453004359
6246200431613
7267240036473
8293251310059
9386732002687
10394530041519
11426724001617
12451714350037
13460054236253
14463724326007
15491514300539
16497514100579
17497524121579
18592632513169
19642732463007
20683002362181
21685200265181

[2412134003,2742300437,141753400357,171450034753,
 191453004359,246200431613,267240036473,
 293251310059,386732002687,394530041519,
 426724001617,451714350037,460054236253,
 463724326007,491514300539,497514100579,
 497524121579,592632513169,642732463007,
 683002362181,685200265181]