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A303989 as a triangular array

1
14
82496
216544320864
1728864017286048048384
2160002160001512000151200060480001209600
24000560002100032400018144000399168005702400
82320008232000926100055566000977961600019559232002542700160025427001600
65856000197568000197568000195592320001955923200050854003200462309120050854003200203416012800

A303989 as a square array

118216172821600024000823200065856000
424548640216000560008232000197568000
96432017281512000210009261000197568000
8646048015120003240005556600019559232000
48384604800018144000977961600019559232000
120960039916800195592320050854003200
5702400254270016004623091200
2542700160050854003200
203416012800
118216172821600024000823200065856000
424548640216000560008232000197568000
96432017281512000210009261000197568000
8646048015120003240005556600019559232000
48384604800018144000977961600019559232000
120960039916800195592320050854003200
5702400254270016004623091200
2542700160050854003200
203416012800