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A278971 as a simple table

na(n)
11
28
336
4120
5330
6792
71716
83432
96435
1011439
1119433
1231732
1350016
1476350
15113178
16163284
17229713
18315645
19424215
20558279
21720147
22911304
231132140
241381710
251657545
261955535
272269905
282593305
292917035
303231405
313526195
323791180
334016685
344194135
354316565
364379055
374379055
384316565
394194135
404016685
413791180
423526195
433231405
442917035
452593305
462269905
471955535
481657545
491381710
501132140
51911304
52720147
53558279
54424215
55315645
56229713
57163284
58113178
5976350
6050016
6131732
6219433
6311439
646435
653432
661716
67792
68330
69120
7036
718
721

[1,8,36,120,330,792,1716,3432,6435,11439,19433,
 31732,50016,76350,113178,163284,229713,315645,
 424215,558279,720147,911304,1132140,1381710,
 1657545,1955535,2269905,2593305,2917035,3231405,
 3526195,3791180,4016685,4194135,4316565,4379055,
 4379055,4316565,4194135,4016685,3791180,3526195,
 3231405,2917035,2593305,2269905,1955535,1657545,
 1381710,1132140,911304,720147,558279,424215,
 315645,229713,163284,113178,76350,50016,31732,
 19433,11439,6435,3432,1716,792,330,120,36,8,1]