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A027084 as a simple table

na(n)
21
33
47
514
627
751
895
9176
10325
11599
121103
132030
143735
156871
1612639
1723248
1842761
1978651
20144663
21266078
22489395
23900139
241655615
253045152
265600909
2710301679
2818947743
2934850334
3064099759
31117897839
32216847935
33398845536

[1,3,7,14,27,51,95,176,325,599,1103,2030,3735,
 6871,12639,23248,42761,78651,144663,266078,489395,
 900139,1655615,3045152,5600909,10301679,18947743,
 34850334,64099759,117897839,216847935,398845536]