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A287279 as a simple table

na(n)
01
11
22
35
415
552
6203
7877
84140
920270
10102004
11523700
122726840
1314332663
1475789343
15402290332
162140945657
1711413941169
1860921661218
19325417158033
201739114057259
219297387238139
2249715367098205
23265879355474309
241422070344597675
257606514013820659

[1,1,2,5,15,52,203,877,4140,20270,102004,523700,
 2726840,14332663,75789343,402290332,2140945657,
 11413941169,60921661218,325417158033,
 1739114057259,9297387238139,49715367098205,
 265879355474309,1422070344597675,7606514013820659]