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A099731 as a triangular array

1
1-1
1-510
1-1259-90
1-22203-8301320
1-35525-398515374-23640
1-511135-1366593544-342324523440
1-702170-37870399889-25425408997540-13633200
1-923794-904401356929-1307658878896236-271996080409852800
1-1176198-193410

A099731 as a square array

1111111111
-1-5-12-22-35-51-70-92-117
10592035251135217037946198
-90-830-3985-13665-37870-90440-193410
132015374935443998891356929
-23640-342324-2542540-13076588
523440899754078896236
-13633200-271996080
409852800

A099731 as an upper right triangle

1111111111
-1-5-12-22-35-51-70-92-117
10592035251135217037946198
-90-830-3985-13665-37870-90440-193410
132015374935443998891356929
-23640-342324-2542540-13076588
523440899754078896236
-13633200-271996080
409852800

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Last modified October 16 08:03 EDT 2018. Contains 316259 sequences. (Running on oeis4.)