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A260294 as a triangular array

48
104104
274201274
560544544560
966114513361145966
230015242966296615242300
4762359137645629376435914762
82528550866071467146866085508252
17470130552102819157109521915721028

A260294 as a square array

4810427456096623004762825217470
104201544114515243591855013055
274544133629663764866021028
560114529665629714619157
96615243764714610952
23003591866019157
4762855021028
8252
4810427456096623004762825217470
104201544114515243591855013055
274544133629663764866021028
560114529665629714619157
96615243764714610952
23003591866019157
4762855021028
8252