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Search: id:A077385
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| A077385 |
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Triangle read by rows in which n-th row contains 2n-1 terms starting from n^0 to n^(n-1) in increasing order and then in decreasing order to n^0. |
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+0
2
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| 1, 1, 2, 1, 1, 3, 9, 3, 1, 1, 4, 16, 64, 16, 4, 1, 1, 5, 25, 125, 625, 125, 25, 5, 1, 1, 6, 36, 216, 1296, 7776, 1296, 216, 36, 6, 1, 1, 7, 49, 343, 2401, 16807, 117649, 16807, 2401, 343, 49, 7, 1, 1, 8, 64, 512, 4096, 32768, 262144, 2097152, 262144, 32768, 4096, 512
(list; graph; listen)
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OFFSET
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1,3
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EXAMPLE
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1; 1,2,1; 1,3,9,3,1; 1,4,16,64,16,4,1; ...
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MAPLE
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A077385 := proc(n, k) if k < n then n^k ; else n^(2*n-k-2) ; fi ; end: for n from 1 to 10 do for k from 0 to 2*n-2 do printf("%d, ", A077385(n, k)) ; od : od : - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 03 2007
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CROSSREFS
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Cf. A077386.
Sequence in context: A159314 A135701 A051467 this_sequence A066013 A014521 A084389
Adjacent sequences: A077382 A077383 A077384 this_sequence A077386 A077387 A077388
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KEYWORD
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nonn,tabf
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 06 2002
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 03 2007
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