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A278024 as a simple table

na(n)
01
11
21
33
45
513
637
7107
8341
91141
104021
1114831
1257017
13227617
14941305
154020455
1617705753
1780215513
18373370329
191782362219
208716939229
2143615569829
22223069903933
231164867074483
246206075782925
2533702629832685
26186436337623597
271049745170246327
286012759489160241

[1,1,1,3,5,13,37,107,341,1141,4021,14831,57017,
 227617,941305,4020455,17705753,80215513,373370329,
 1782362219,8716939229,43615569829,223069903933,
 1164867074483,6206075782925,33702629832685,
 186436337623597,1049745170246327,6012759489160241]