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A180957 as a triangular array

1
11
111
1001
1-2-5-21
1-5-15-15-51
1-9-30-41-30-91
1-14-49-77-77-49-141
1-20-70-112-125-112-70-201
1-27-90-126-117-117-126-90-271
1-35-105-904513145-90-105

A180957 as a square array

11111111111
110-2-5-9-14-20-27-35
10-5-15-30-49-70-90-105
1-2-15-41-77-112-126-90
1-5-30-77-125-11745
1-9-49-112-117131
1-14-70-12645
1-20-90-90
1-27-105
1

A180957 as an upper right triangle

11111111111
110-2-5-9-14-20-27-35
10-5-15-30-49-70-90-105
1-2-15-41-77-112-126-90
1-5-30-77-125-11745
1-9-49-112-117131
1-14-70-12645
1-20-90-90
1-27-105
1

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Last modified October 16 23:50 EDT 2019. Contains 328103 sequences. (Running on oeis4.)