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A008290 formatted as a triangular array:

1
0 1
1 0 1
2 3 0 1
9 8 6 0 1
44 45 20 10 0 1
265 264 135 40 15 0 1
1854 1855 924 315 70 21 0 1
14833 14832 7420 2464 630 112 28 0 1
133496 133497 66744 22260 5544 1134 168 36 0 1

A008290 formatted as a square array:

1 0 1 2 9 44 265 1854 14833 133496
1 0 3 8 45 264 1855 14832 133497
1 0 6 20 135 924 7420 66744
1 0 10 40 315 2464 22260
1 0 15 70 630 5544
1 0 21 112 1134
1 0 28 168
1 0 36
1 0
1

A008290 formatted as an upper right triangle:

1 0 1 2 9 44 265 1854 14833 133496
1 0 3 8 45 264 1855 14832 133497
1 0 6 20 135 924 7420 66744
1 0 10 40 315 2464 22260
1 0 15 70 630 5544
1 0 21 112 1134
1 0 28 168
1 0 36
1 0
1

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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