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A266577 as a triangular array

1
31
1351
634191
313365145171
156332812457545331
78132952541761179692113651
3906326572170992959296113731383211291
1953132391485120687851956769789253131073345330252571
9765632152336120516933764573398558014531313846144184872971315855131

A266577 as a square array

1313633131563781339063195313976563
1541365328129525265721239148521523361
1914524574176170992912068785205169337
1175451796959296119567697645733985
13321131373138925313580145313
16583211073345138461441
1129330258487297
1257131585
1513
1
1313633131563781339063195313976563
1541365328129525265721239148521523361
1914524574176170992912068785205169337
1175451796959296119567697645733985
13321131373138925313580145313
16583211073345138461441
1129330258487297
1257131585
1513
1