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A287617 as a simple table

na(n)
01
11
21
31
45
521
661
7141
8309
9766
102191
116436
1218041
1348348
14128311
15347166
16960197
172674883
187413514
1920411986
2056130675
21154907229
22429349768
231192532452
243312339849
259196063371
2625538113056
2770994900341
28197595884071
29550414483911
301533911418946

[1,1,1,1,5,21,61,141,309,766,2191,6436,18041,
 48348,128311,347166,960197,2674883,7413514,
 20411986,56130675,154907229,429349768,1192532452,
 3312339849,9196063371,25538113056,70994900341,
 197595884071,550414483911,1533911418946]