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A259642 as a triangular array

18
2929
696469
133171171133
236365581365236
47281314831483813472
94019643849414638491964940
178144991126112348123481126144991781
3433101883095742524445004252430957101883433

A259642 as a square array

18296913323647294017813433
29641713658131964449910188
69171581148338491126130957
133365148341461234842524
23681338491234844500
47219641126142524
940449930957
178110188
3433
18296913323647294017813433
29641713658131964449910188
69171581148338491126130957
133365148341461234842524
23681338491234844500
47219641126142524
940449930957
178110188
3433