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A017740 as a simple table

na(n)
761
7777
783003
7979079
801581580
8125621596
82350161812
834151918628
8443595145594
85411731930610
863540894603246
8728005257316582
88205371886988268
891406007533996604
909038619861406740
9154834293825867556

[1,77,3003,79079,1581580,25621596,350161812,
 4151918628,43595145594,411731930610,3540894603246,
 28005257316582,205371886988268,1406007533996604,
 9038619861406740,54834293825867556]