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A207815 as a triangular array

1
-31
8-61
-2125-91
55-9051-121
-144300-23486-151
377-954951-480130-181
-9872939-35732305-855183-211
2584-885012707-100084740-1386245-241
-676526195-4339840426-233738715

A207815 as a square array

1-38-2155-144377-9872584-6765
1-625-90300-9542939-885026195
1-951-234951-357312707-43398
1-1286-4802305-1000840426
1-15130-8554740-23373
1-18183-13868715
1-21245
1-24
1

A207815 as an upper right triangle

1-38-2155-144377-9872584-6765
1-625-90300-9542939-885026195
1-951-234951-357312707-43398
1-1286-4802305-1000840426
1-15130-8554740-23373
1-18183-13868715
1-21245
1-24
1

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)