A076348 A076341(A005117(n)), imaginary part of squarefree numbers mapped as defined in A076340, A076341.

0, 0, -1, 1, -2, -1, 2, -1, 1, -2, 0, 1, -1, -12, -2, -1, 2, 1, 0, -1, -16, 2, 4, 1, -2, -8, 1, -24, -1, -2, -1, -12, 1, 8, -24, 2, -1, 1, -2, 16, -32, -1, -28, 8, -1, 1, 2, -20, -16, -1, 2, -1, 20, -2, -24, 1, -4, -36, -2, 16, 1, 1, -24, -1, -17, 2, -1, 1, 16, -32, 1, -48, 20, -2, -8

Offset

1,5

Links

Table of n, a(n) for n=1..75.

Example

Applying the map as defined in A076340, A076341:
A005117(40)=65=5*13=(4+1)*(12+1) -> (4,1)*(12,1) = (4*12-1,12+4) = (47,16), therefore a(40)=16 and A076347(40)=47.

Crossrefs

Real part = A076347, A070750, A076344, A076350, A076352.

Sequence in context: A324510 A061916 A351819 * A263835 A113310 A359537

Adjacent sequences: A076345 A076346 A076347 * A076349 A076350 A076351

Keyword

sign

Author

Reinhard Zumkeller, Oct 08 2002

Status

approved