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A266394 as a triangular array

1
42
713
10554
134125
1686866
19781637
22114711278
25109515949
2814111181477810
31137491923511
34171210991791210912

A266394 as a square array

147101316192225283134
2154871110141317
351684911712
42817511410
566111899
63251419
7797917
84729
98312
10510
119
12
147101316192225283134
2154871110141317
351684911712
42817511410
566111899
63251419
7797917
84729
98312
10510
119
12