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A323678 as a simple table

na(n)
01
12
212
350
472
5142
65346
738338
8240902
91369462
108927272
1129594702
1278001922
13259042422
142690290778
1526069217364
16144738683318
17959061370318
187256969189340
1935982546596434
20223064363341712
211127137948649166
224200987237905836
2314295780646046930
2450369139372748128
25286016211643945372
262979062704489818940
2730112757810084509370
28153633113062169831324
29927474622673328916402

[1,2,12,50,72,142,5346,38338,240902,1369462,
 8927272,29594702,78001922,259042422,2690290778,
 26069217364,144738683318,959061370318,
 7256969189340,35982546596434,223064363341712,
 1127137948649166,4200987237905836,
 14295780646046930,50369139372748128,
 286016211643945372,2979062704489818940,
 30112757810084509370,153633113062169831324,
 927474622673328916402]