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Search: id:A127467
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| 1, 1, 2, 2, 0, 6, 2, 2, 0, 8, 4, 0, 0, 0, 20, 2, 4, 6, 0, 0, 12, 6, 0, 0, 0, 0, 0, 42, 4, 4, 0, 8, 0, 0, 0, 32, 6, 0, 12, 0, 0, 0, 0, 0, 54, 4, 8, 0, 0, 20, 0, 0, 0, 0, 40
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Left column = phi(n), A000010; right border = n*phi(n), A002618; row sums = A007434, (Mobius transform of the squares).
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FORMULA
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Mobius transform of A127466; (A054525 * A127466 as infinite lower triangular matrices).
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EXAMPLE
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First few rows of the triangle are:
1;
1, 2;
2, 0, 6;
2, 2, 0, 8;
4, 0, 0, 0, 20;
2, 4, 6, 0, 0, 12;
6, 0, 0, 0, 0, 0, 42;
4, 4, 0, 8, 0, 0, 0, 32;
...
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CROSSREFS
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Cf. A127466, A002618, A000010, A054525, A007434.
Sequence in context: A129936 A157077 A076256 this_sequence A140333 A135006 A086118
Adjacent sequences: A127464 A127465 A127466 this_sequence A127468 A127469 A127470
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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), Jan 15 2007
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