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Search: id:A139459
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| A139459 |
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Triangle read by rows: ConvOffsStoT transform of the dodecahedral numbers A006560 starting (1, 20, 84, 220,...). |
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+0
2
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| 1, 1, 1, 1, 20, 1, 1, 84, 84, 1, 1, 220, 924, 220, 1, 1, 455, 5005, 5005, 455, 1, 1, 816, 18564, 48620, 18564, 816, 1, 1, 1330, 54264, 293930, 293930, 54264, 1330, 1
(list; table; graph; listen)
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OFFSET
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1,5
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COMMENT
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Row sums = A007613(n-1): (1, 2, 22, 170, 1366, 10922, 87382,...).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
1, 20, 1;
1, 84, 84, 1;
1, 220, 924, 220, 1;
1, 455, 5005, 5005, 455, 1;
1, 816, 18564, 48620, 18564, 816, 1;
...
Row 5 = (1, 220, 924, 220, 1) = ConfOffs transform of (1, 20, 84, 220); where A006560 = (0, 1, 20, 84, 220, 455,...).
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CROSSREFS
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Cf. A006560, A007613.
Sequence in context: A040402 A040401 A040400 this_sequence A154652 A155516 A144443
Adjacent sequences: A139456 A139457 A139458 this_sequence A139460 A139461 A139462
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 22 2008
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