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A129818 as a triangular array

1
-11
1-31
-16-51
1-1015-71
-115-3528-91
1-2170-8445-111
-128-126210-16566-131
1-36210-462495-28691-151
-145-330924-12871001-455120-171
1-55495-17163003-30031820-680153-191

A129818 as a square array

1-11-11-11-11-11
1-36-1015-2128-3645-55
1-515-3570-126210-330495
1-728-84210-462924-1716
1-945-165495-12873003
1-1166-2861001-3003
1-1391-4551820
1-15120-680
1-17153
1-19
1

A129818 as an upper right triangle

1-11-11-11-11-11
1-36-1015-2128-3645-55
1-515-3570-126210-330495
1-728-84210-462924-1716
1-945-165495-12873003
1-1166-2861001-3003
1-1391-4551820
1-15120-680
1-17153
1-19
1

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Last modified February 23 17:58 EST 2018. Contains 299584 sequences. (Running on oeis4.)