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A264341 as a triangular array

4
138
495516
18149023332
6763567490098764
25212892570669490004181128
94092233561243225139978349000017711256
351131759250203866175342962027726581490000075025512
13104413750304

A264341 as a square array

413491816762521940935113131044
855490356728925223356175925013750304
16233490070669124322520386617
3298749000139978353429620
64418149000027726581
128177114900000
25675025
512
413491816762521940935113131044
855490356728925223356175925013750304
16233490070669124322520386617
3298749000139978353429620
64418149000027726581
128177114900000
25675025
512