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A260833 as a simple table

na(n)
148
2131
3700
42235
53828
619718
780516
8181176
9766388
103885356
1112122540
1243330160
13229463444
14972300920
153559612500
1617890822312
1791527500980

[48,131,700,2235,3828,19718,80516,181176,766388,
 3885356,12122540,43330160,229463444,972300920,
 3559612500,17890822312,91527500980]