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A276640 as a simple table

na(n)
11
23
31
416
515
66
71
8125
9222
10205
11120
1245
1310
141
1590
161356
173670
185700
196165
204945
212997
221365
23455
24105
2515
261
271680
2818942
2969450
30156870
31258160
32331506
33343140
34290745
35202755
36116175
3754257
3820349
395985
401330
41210
4221
431

[1,3,1,16,15,6,1,125,222,205,120,45,10,1,90,1356,
 3670,5700,6165,4945,2997,1365,455,105,15,1,1680,
 18942,69450,156870,258160,331506,343140,290745,
 202755,116175,54257,20349,5985,1330,210,21,1]