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A375797 as a triangular array

1
21
323
6321
55135
444221
7684357
97654321
81171114579
10957624321
151099146357911
12818887644321
131211101217165791113
141316610982654321

A375797 as a square array

1236547981015121314
12354671191081213
321486759181116
1324511798106
5234161481210
1534267179
72543618
1735462
927456
19375
11294
1113
132
1
1236547981015121314
12354671191081213
321486759181116
1324511798106
5234161481210
1534267179
72543618
1735462
927456
19375
11294
1113
132
1