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A251231 as a simple table

na(n)
1322
2694
31592
43886
59914
626224
771322
8198318
9561212
101611002
114679574
1213730612
1340642206
14121238834
15364209520
161101127798
173348686298
1810239114144
1931464490330
2097136312190
21301153069996
22937321265322
232927816428982

[322,694,1592,3886,9914,26224,71322,198318,561212,
 1611002,4679574,13730612,40642206,121238834,
 364209520,1101127798,3348686298,10239114144,
 31464490330,97136312190,301153069996,937321265322,
 2927816428982]