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A076352 Squarefree numbers n such that A076341(n)=0. 1
1, 2, 15, 30, 143, 286, 2145, 3599, 4290, 5183, 7198 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

EXAMPLE

Applying the map as defined in A076340, A076341:

A005117(19)=30=5*3*2=(4+1)*(4-1)*2 -> (4,1)*(4,-1)*(2,0) = (4*4+1,4-4)*(2,0) = (34,0), therefore A076340(30)=34 and A076341(30)=0;

A005117(28)=42=7*3*2=(8-1)*(4-1)*2 -> (8,-1)*(4,-1)*(2,0) = (8*4-1,-8-4)*(2,0) = (62,-24), therefore A076340(42)=62 and A076341(42)=-24, hence 42 is not a term.

CROSSREFS

Cf. A076348.

Sequence in context: A071999 A031289 A093917 * A154790 A042461 A196263

Adjacent sequences:  A076349 A076350 A076351 * A076353 A076354 A076355

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 08 2002

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Last modified February 14 13:08 EST 2012. Contains 205623 sequences.