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Search: id:A159610
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| A159610 |
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Triangle read by rows, n-th row = n terms of A000255: (1, 3, 11, 53, 309,...); right border = A000166 starting (1, 2, 9, 44, 265,...) |
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4
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| 1, 3, 2, 11, 11, 9, 53, 53, 53, 44, 309, 309, 309, 309, 265, 2119, 2119, 2119, 2119, 2119, 1854, 16687, 16687, 16687, 16687, 16687, 14833, 148329, 148329, 148329, 148329, 148329, 148329, 148329, 133496
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A002469(n+2), representing the game of mousetrap with n cards; where nonzero terms of A02469 start: (1, 5, 31, 203, 1501,...). A002469(n) = (n-2)*A000255(n-1) + A000166(n). Example 31 = 2*11 + 9 = A002469(4) = 2*A000255(3) + A000166(4).
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FORMULA
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Triangle read by rows, n-th row = n terms of A000255: (1, 3, 11, 53, 309,...); right border = A000166 starting (1, 2, 9, 44, 265,...)
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EXAMPLE
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First few rows of the triangle =
1;
3, 2;
11, 11, 9;
53, 53, 53, 44;
309, 309, 309, 309, 265;
2119, 2119, 2119, 2119, 2119, 1854;
16687, 16687, 16687, 16687, 16687, 16687, 14833;
...
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CROSSREFS
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Cf. A002469, A000166, A000255
Sequence in context: A163841 A072634 A086194 this_sequence A074246 A134426 A122672
Adjacent sequences: A159607 A159608 A159609 this_sequence A159611 A159612 A159613
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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 17 2009
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