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A293968 as a simple table

na(n)
144
1562
16417
172414
1812190
1957686
20260349
211143710
224936266
2321117128
2490035798
25384416432
261649398948
277133455202
2831173583589
29137947781614
30619247938106
312824375268432
3213105785174035
3361940904739132
34298438345898409
351466892183248186
367358885205363735

[4,62,417,2414,12190,57686,260349,1143710,4936266,
 21117128,90035798,384416432,1649398948,7133455202,
 31173583589,137947781614,619247938106,
 2824375268432,13105785174035,61940904739132,
 298438345898409,1466892183248186,7358885205363735]