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A008284 formatted as a triangular array:

1
1 1
1 1 1
1 2 1 1
1 2 2 1 1
1 3 3 2 1 1
1 3 4 3 2 1 1
1 4 5 5 3 2 1 1
1 4 7 6 5 3 2 1 1
1 5 8 9 7 5 3 2 1 1
1 5 10 11 10 7 5 3 2 1 1
1 6 12 15 13 11 7 5 3 2 1 1
1 6 14 18 18 14 11 7 5 3 2 1 1

A008284 formatted as a square array:

1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 2 2 3 3 4 4 5 5 6 6
1 1 2 3 4 5 7 8 10 12 14
1 1 2 3 5 6 9 11 15 18
1 1 2 3 5 7 10 13 18
1 1 2 3 5 7 11 14
1 1 2 3 5 7 11
1 1 2 3 5 7
1 1 2 3 5
1 1 2 3
1 1 2
1 1
1

A008284 formatted as an upper right triangle:

1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 2 2 3 3 4 4 5 5 6 6
1 1 2 3 4 5 7 8 10 12 14
1 1 2 3 5 6 9 11 15 18
1 1 2 3 5 7 10 13 18
1 1 2 3 5 7 11 14
1 1 2 3 5 7 11
1 1 2 3 5 7
1 1 2 3 5
1 1 2 3
1 1 2
1 1
1

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.


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