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Search: id:A054630
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| A054630 |
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Triangle read by rows: row n (n>=1) contains the numbers T(n,k) = sum_{ d divides k } phi(d)*n^(k/d)/k for k = 1..n. |
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+0
7
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| 1, 2, 3, 3, 6, 11, 4, 10, 24, 70, 5, 15, 45, 165, 629, 6, 21, 76, 336, 1560, 7826, 7, 28, 119, 616, 3367, 19684, 117655, 8, 36, 176, 1044, 6560, 43800, 299600, 2097684, 9, 45, 249, 1665, 11817, 88725, 683289, 5381685, 43046889, 10, 55
(list; table; graph; listen)
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OFFSET
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1,2
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LINKS
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Index entries for sequences related to necklaces
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EXAMPLE
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1; 2,3; 3,6,11; 4,10,24,70; ...
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CROSSREFS
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Cf. A054631, A054618, A054619. Upper triangle of A075195.
Sequence in context: A079888 A059191 A124063 this_sequence A049875 A087989 A103356
Adjacent sequences: A054627 A054628 A054629 this_sequence A054631 A054632 A054633
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KEYWORD
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nonn,tabl
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AUTHOR
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njas, Apr 16 2000, revised Mar 21 2007
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