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A005191 as a simple table

na(n)
01
11
25
319
485
5381
61751
78135
838165
9180325
10856945
114091495
1219611175
1394309099
14454805755
152198649549
1610651488789
1751698642405
18251345549849
191223798004815
205966636799745
2129125608152345
22142330448514875
23696235630761115
243408895901222375

[1,1,5,19,85,381,1751,8135,38165,180325,856945,
 4091495,19611175,94309099,454805755,2198649549,
 10651488789,51698642405,251345549849,
 1223798004815,5966636799745,29125608152345,
 142330448514875,696235630761115,3408895901222375]