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A176074 as a simple table

na(n)
01
11
22
33
47
517
651
7163
8561
92004
107391
1127873
12107050
13417152
141645339
156555752
1626348334
17106691779
18434851380
191782551286
207344326285
2130397197514
22126324028956
23526911437207
242205163133586
259256931835831
2638967696710845

[1,1,2,3,7,17,51,163,561,2004,7391,27873,107050,
 417152,1645339,6555752,26348334,106691779,
 434851380,1782551286,7344326285,30397197514,
 126324028956,526911437207,2205163133586,
 9256931835831,38967696710845]