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A260978 as a simple table

na(n)
12755
21873
32576
45506
59144
618706
730418
862878
9107802
10218342
11372200
12752768
131301722
142647272
154577194
169211590
1716034066
1832273054
1956601764
20112913040
21198964362
22395528584
23701501654
241386971610
252469037804
264864090436

[2755,1873,2576,5506,9144,18706,30418,62878,
 107802,218342,372200,752768,1301722,2647272,
 4577194,9211590,16034066,32273054,56601764,
 112913040,198964362,395528584,701501654,
 1386971610,2469037804,4864090436]