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A077849 as a simple table

na(n)
01
13
28
321
454
5138
6352
7897
82285
95820
1014823
1137752
1296148
13244872
14623645
151588311
164045140
1710302237
1826237926
1966823230
20170186624
21433434405
221103878665
232811378360
247160069791
2518235396608
2646442241368
27118279949136
28301237536249
29767197263003

[1,3,8,21,54,138,352,897,2285,5820,14823,37752,
 96148,244872,623645,1588311,4045140,10302237,
 26237926,66823230,170186624,433434405,1103878665,
 2811378360,7160069791,18235396608,46442241368,
 118279949136,301237536249,767197263003]