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A248456 as a simple table

na(n)
148
2148
3460
41436
54488
614040
743940
8137532
9430508
101347652
114218704
1213206360
1341341772
14129418260
15405137308
161268262348
173970233208
1812428621208
1938907193300
20121797075276
21381279818252
221193577924020
233736437636672

[48,148,460,1436,4488,14040,43940,137532,430508,
 1347652,4218704,13206360,41341772,129418260,
 405137308,1268262348,3970233208,12428621208,
 38907193300,121797075276,381279818252,
 1193577924020,3736437636672]