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A276724 as a simple table

na(n)
01
11
22
35
415
552
6203
7877
84140
917007
1064077
11231180
12821132
132918753
1410483154
1538264066
16142423894
17533308705
181995314365
197437442700
2027604521795
21102095937121
22376790770192
231389739254904
245130664114644
2518964932885093
2670170215134155
27259770146382666

[1,1,2,5,15,52,203,877,4140,17007,64077,231180,
 821132,2918753,10483154,38264066,142423894,
 533308705,1995314365,7437442700,27604521795,
 102095937121,376790770192,1389739254904,
 5130664114644,18964932885093,70170215134155,
 259770146382666]