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A131413 as a triangular array

1
43
765
10987
131211109
161514131211
19181716151413
2221201918171615
252423222120191817
28272625242322212019
3130292827262524232221
343332313029282726252423

A131413 as a square array

147101316192225283134
3691215182124273033
581114172023262932
71013161922252831
912151821242730
11141720232629
131619222528
1518212427
17202326
192225
2124
23
147101316192225283134
3691215182124273033
581114172023262932
71013161922252831
912151821242730
11141720232629
131619222528
1518212427
17202326
192225
2124
23