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Search: id:A139526
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| 1, 1, 2, 1, 6, 9, 1, 12, 48, 64, 1, 20, 150, 500, 625, 1, 30, 360, 2160, 6480, 7776, 1, 42, 735, 6860, 36015, 100842, 117649, 1, 56, 1344, 17920, 143360, 688128, 1835008, 2097152, 1, 72, 2268, 40824, 459270, 3306744, 14880348, 38263752, 43046721, 1, 90
(list; table; graph; listen)
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OFFSET
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2,3
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REFERENCES
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Peter D. Schumer (2004), Mathematical Journeys, page 168, Proposition 16.1 (c)
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EXAMPLE
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(1) times (1) = (1)
(1 1) * (1 2) = (1 2)
(1 2 1 ) * (1 3 9) = (1 6 9)
(1 3 3 1) * (1 4 16 64) = (1 12 48 64)
etc.
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MAPLE
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A061356 := proc(n, k) binomial(n-2, k-1)*(n-1)^(n-k-1); end: A139526 := proc(n, k) A061356(n, n-k-1) ; end: for n from 2 to 14 do for k from 0 to n-2 do printf("%d, ", A139526(n, k)) ; od: od: - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 22 2008
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PROGRAM
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(PARI) for(n=2, 12, forstep(k=n-1, 1, -1, print1(binomial(n-2, k-1)*(n-1)^(n-k-1)", "))) - Herman Jamke (hermanjamke(AT)fastmail.fm), May 10 2008
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CROSSREFS
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Cf. A000272 (sum of lines), A061356.
Sequence in context: A156034 A160581 A021465 this_sequence A145663 A160565 A025252
Adjacent sequences: A139523 A139524 A139525 this_sequence A139527 A139528 A139529
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KEYWORD
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nonn,tabl
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AUTHOR
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Alford Arnold (Alford1940(AT)aol.com), Apr 24 2008
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl) and Herman Jamke (hermanjamke(AT)fastmail.fm), May 01 2008
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