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A171388 as a triangular array

1
20
500
12100
304100
74174100
18556214100
46018574264100

A171388 as a square array

125123074185460
00141756185
00142174
001426
0014
001
00
0

A171388 as an upper right triangle

125123074185460
00141756185
00142174
001426
0014
001
00
0

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Last modified November 26 20:19 EST 2014. Contains 250119 sequences.