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A028246
as a triangular array
1
1
1
1
3
2
1
7
12
6
1
15
50
60
24
1
31
180
390
360
120
1
63
602
2100
3360
2520
720
1
127
1932
10206
25200
31920
20160
5040
1
255
6050
46620
166824
317520
332640
181440
40320
1
511
18660
204630
1020600
2739240
4233600
3780000
1814400
362880
A028246
as a square array
1
1
1
1
1
1
1
1
1
1
1
3
7
15
31
63
127
255
511
2
12
50
180
602
1932
6050
18660
6
60
390
2100
10206
46620
204630
24
360
3360
25200
166824
1020600
120
2520
31920
317520
2739240
720
20160
332640
4233600
5040
181440
3780000
40320
1814400
362880
A028246
as an upper right triangle
1
1
1
1
1
1
1
1
1
1
1
3
7
15
31
63
127
255
511
2
12
50
180
602
1932
6050
18660
6
60
390
2100
10206
46620
204630
24
360
3360
25200
166824
1020600
120
2520
31920
317520
2739240
720
20160
332640
4233600
5040
181440
3780000
40320
1814400
362880
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Last modified May 13 03:50 EDT 2024. Contains 372497 sequences. (Running on oeis4.)