A066682 - OEIS

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A066682

Indices of badly sieved numbers: a(n) = k if n = A066680(k), otherwise 0.

2

0, 1, 2, 0, 3, 0, 4, 5, 0, 0, 6, 7, 8, 0, 0, 0, 9, 10, 11, 0, 0, 0, 12, 0, 0, 0, 13, 0, 14, 15, 16, 0, 0, 0, 0, 0, 17, 0, 0, 0, 18, 0, 19, 0, 20, 0, 21, 0, 0, 22, 0, 0, 23, 0, 0, 0, 0, 0, 24, 0, 25, 0, 26, 0, 0, 0, 27, 0, 0, 28, 29, 0, 30, 0, 31, 0, 0, 0, 32

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OFFSET

1,3

LINKS

Table of n, a(n) for n=1..79.

FORMULA

a(n) = A099104(n)*A066683(n).

CROSSREFS

Cf. A049084, A066680, A066683, A099104.

Sequence in context: A008808 A008820 A357475 * A239968 A362369 A320311

Adjacent sequences: A066679 A066680 A066681 * A066683 A066684 A066685

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Dec 31 2001

STATUS

approved