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A128495 as a triangular array

1
11
2-11
23-31
3-38-51
36-1617-71
4-630-4530-91
410-50103-9847-111
5-1080-211269-18368-131
515-120399-651588-30893-151
6-15175-7071432-16441136-481122-171
621-2451190-29204132-3608

A128495 as a square array

112233445566
1-13-36-610-1015-1521
1-38-1630-5080-120175-245
1-517-45103-211399-7071190
1-730-98269-6511432-2920
1-947-183588-16444132
1-1168-3081136-3608
1-1393-481
1-15122
1-17
1

A128495 as an upper right triangle

112233445566
1-13-36-610-1015-1521
1-38-1630-5080-120175-245
1-517-45103-211399-7071190
1-730-98269-6511432-2920
1-947-183588-16444132
1-1168-3081136-3608
1-1393-481
1-15122
1-17
1

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Last modified July 12 18:03 EDT 2020. Contains 335666 sequences. (Running on oeis4.)