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A257147 as a simple table

na(n)
1512
216677
3732482
451899365
56713096472
61618913713517
7695152560346535
8535333746001462703
9743423728273958126735
101857204484036444866135303

[512,16677,732482,51899365,6713096472,
 1618913713517,695152560346535,535333746001462703,
 743423728273958126735,1857204484036444866135303]