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A027361 as a simple table

na(n)
01
11
21
32
45
517
668
7326
81780
911033
1076028
11578290
124803696
1343297358
14420639362
154382320595
1648729809104
17576039659209
187213070102518
1995373808983223
201327842798808220
2119416307366048221
22297499363267839558
234766432683120731044
2479699553284422816437
251388383661114307067780
2625156549558328842669336

[1,1,1,2,5,17,68,326,1780,11033,76028,578290,
 4803696,43297358,420639362,4382320595,48729809104,
 576039659209,7213070102518,95373808983223,
 1327842798808220,19416307366048221,
 297499363267839558,4766432683120731044,
 79699553284422816437,1388383661114307067780,
 25156549558328842669336]