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A254645 as a simple table

na(n)
11
268
3995
47672
540614
6166992
7571626
81701480
94534959
1011050468
1124997973
1253113424
13106959580
14205628736
15379603812
16676144944
171166649837
181956528420
193198236503
205108229896
217988730530
2212255340240

[1,68,995,7672,40614,166992,571626,1701480,
 4534959,11050468,24997973,53113424,106959580,
 205628736,379603812,676144944,1166649837,
 1956528420,3198236503,5108229896,7988730530,
 12255340240]