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A075112 as a simple table

na(n)
04
11
2-1
36
416
520
635
779
8156
9288
10552
111077
122079
133994
147696
1514848
1628623
1755159
18106320
19204952
20395060
21761489
221467815
232829318
245453688
2510512308
2620263123
2739058439
2875287564
29145121432
30279730552
31539197989
321039337543
332003387514
343861653592
357443576640
3614347955295

[4,1,-1,6,16,20,35,79,156,288,552,1077,2079,3994,
 7696,14848,28623,55159,106320,204952,395060,
 761489,1467815,2829318,5453688,10512308,20263123,
 39058439,75287564,145121432,279730552,539197989,
 1039337543,2003387514,3861653592,7443576640,
 14347955295]