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A231315 as a triangular array

9
5757
414937414
294218334183342942
20996352610104421435261020996
150012678143657491294574912946781436150012
10718481306332883176514169900853203131765141691306332881071848
76598002516212586

A231315 as a square array

95741429422099615001210718487659800
579371833435261067814361306332882516212586
414183341044214574912943176514169
2942352610574912949008532031
2099667814363176514169
150012130633288
1071848
95741429422099615001210718487659800
579371833435261067814361306332882516212586
414183341044214574912943176514169
2942352610574912949008532031
2099667814363176514169
150012130633288
1071848