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A118551 as a simple table

na(n)
01
12
24
35
410
520
621
722
823
924
1048
1149
1250
1351
1452
1553
1654
1755
1856
1957
20114
21228
22456
23912
241824
251825
261826
271827
281828
291829
301830
311831
321832
331833
341834
351835
361836
371837
381838
391839
401840
411841
421842
431843
441844
451845
461846
471847
483694
497388
5014776

[1,2,4,5,10,20,21,22,23,24,48,49,50,51,52,53,54,
 55,56,57,114,228,456,912,1824,1825,1826,1827,1828,
 1829,1830,1831,1832,1833,1834,1835,1836,1837,1838,
 1839,1840,1841,1842,1843,1844,1845,1846,1847,3694,
 7388,14776]