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A143724 as a triangular array

1
12
104
1205
10009
124007
10000015
120500012
1040000018
12009000015
100000000028
1245070000016

A143724 as a square array

111111111111
20202020202
4004004004
500050005
90000900
7000007
1500000
120000
18000
1500
280
16

A143724 as an upper right triangle

111111111111
20202020202
4004004004
500050005
90000900
7000007
1500000
120000
18000
1500
280
16

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Last modified September 14 06:54 EDT 2024. Contains 375920 sequences. (Running on oeis4.)