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Search: id:A107893
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| A107893 |
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Triangle read by rows, related to A055129 (repunits in base k). |
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+0
1
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| 1, 2, 1, 3, 4, 2, 4, 11, 14, 6, 5, 26, 64, 66, 24, 6, 57, 244, 456, 384, 120, 7, 120, 846, 2556, 3744, 2640, 720, 8, 247, 2778, 12762, 28944, 34560, 20880, 5040
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OFFSET
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1,2
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COMMENT
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Second column of A107893 = Eulerian numbers (A000295) starting with 1: 1, 4, 11, 26, 57... Rightmost term in row n = (n-1)!
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FORMULA
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n-th row = inverse binomial transform of n-th column of A055129; where the latter are generated from f(x) = x^(n-1) + x^(n-2) + ...+ x + 1; (x=1, 2, 3...)
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EXAMPLE
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Binomial transform of Row 4 in the form: (4, 11, 14, 6, 0, 0, 0...) = Row 4 of A055129: 4, 15, 40, 85, ...which is generated from f(x) = x^3 + x^2 + x + 1; (x=1,2,3...).
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CROSSREFS
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Cf. A055129, A000295.
Sequence in context: A102756 A086614 A108959 this_sequence A131987 A120874 A112382
Adjacent sequences: A107890 A107891 A107892 this_sequence A107894 A107895 A107896
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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), May 26 2005
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