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A108716 as a simple table

na(n)
03
121
2371
37077
4135779
52606261
650028755
7960335173
818434276035
9353858266965
106792546291251
11130387472704741
122502874814474531
1348044357383337973
14922243598852422035
1517703083191185355397

[3,21,371,7077,135779,2606261,50028755,960335173,
 18434276035,353858266965,6792546291251,
 130387472704741,2502874814474531,
 48044357383337973,922243598852422035,
 17703083191185355397]