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A127467 Mobius transform of A127466. 0
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; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Left column = phi(n), A000010; right border = n*phi(n), A002618; row sums = A007434, (Mobius transform of the squares).

LINKS

Table of n, a(n) for n=1..55.

FORMULA

Mobius transform of A127466; (A054525 * A127466 as infinite lower triangular matrices).

EXAMPLE

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;

...

CROSSREFS

Cf. A127466, A002618, A000010, A054525, A007434.

Sequence in context: A157077 A185896 A076256 * A338001 A271708 A284983

Adjacent sequences:  A127464 A127465 A127466 * A127468 A127469 A127470

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 15 2007

STATUS

approved

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Last modified April 17 03:21 EDT 2021. Contains 343059 sequences. (Running on oeis4.)