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A280614 as a simple table

na(n)
01
10
21
312
45
550
61
7244
817
9964
1017
114036
1285
1316170
1417
1565348
16277
17261194
18257
191047676
201281
214190844
2269
2316774930
245201
2567094820
261
27268427228
2820561
291073686308
301
314294932340
3287377
3317179650724
3421761
3568719291004
36267333
37274876975378
38344385

[1,0,1,12,5,50,1,244,17,964,17,4036,85,16170,17,
 65348,277,261194,257,1047676,1281,4190844,69,
 16774930,5201,67094820,1,268427228,20561,
 1073686308,1,4294932340,87377,17179650724,21761,
 68719291004,267333,274876975378,344385]