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A166637 Totally multiplicative sequence with a(p) = 7*(p-1) for prime p. +0
1
1, 7, 14, 49, 28, 98, 42, 343, 196, 196, 70, 686, 84, 294, 392, 2401, 112, 1372, 126, 1372, 588, 490, 154, 4802, 784, 588, 2744, 2058, 196, 2744, 210, 16807, 980, 784, 1176, 9604, 252, 882, 1176, 9604, 280, 4116, 294, 3430, 5488, 1078, 322, 33614, 1764 (list; graph; listen)
OFFSET

1,2

FORMULA

Multiplicative with a(p^e) = (7*(p-1))^e. If n = Product p(k)^e(k) then a(n) = Product (7*(p(k)-1)^e(k). a(n) = A165828(n) * A003958(n) = 7^bigomega(n) * A003958(n) = 7^A001222(n) * A003958(n).

CROSSREFS

Sequence in context: A098328 A062098 A045759 this_sequence A033650 A135536 A020700

Adjacent sequences: A166634 A166635 A166636 this_sequence A166638 A166639 A166640

KEYWORD

nonn

AUTHOR

Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Oct 18 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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