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A118687 as a triangular array

1
1-1
1-21
1-33-1
1-46-41
1-822-2817-4
1-1254-116129-7216
1-36342-14122913-31681744-384
1-601206-962036801-7308077776-422409216
1-25212726-2411721883841-713887214109136-149752328119296-1769472
1-1980448182

A118687 as a square array

11111111111
-1-2-3-4-8-12-36-60-252-1980
1362254342120612726448182
-1-4-28-116-1412-9620-241172
1171292913368011883841
-4-72-3168-73080-7138872
1617447777614109136
-384-42240-14975232
92168119296
-1769472

A118687 as an upper right triangle

11111111111
-1-2-3-4-8-12-36-60-252-1980
1362254342120612726448182
-1-4-28-116-1412-9620-241172
1171292913368011883841
-4-72-3168-73080-7138872
1617447777614109136
-384-42240-14975232
92168119296
-1769472

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Last modified May 24 20:53 EDT 2019. Contains 323534 sequences. (Running on oeis4.)