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A087236 a(n) is the difference between the largest and smallest solutions to n=x/pi[x], where pi[x]=A000720[x]. 1
6, 6, 24, 30, 126, 35, 64, 774, 180, 0, 600, 221, 770, 2145, 32, 4573, 8172, 5852, 5720, 7035, 792, 7774, 5256, 2825, 104 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

FORMULA

a[n]=Max{x; npi[x]=x}-Min{x; npi[x]=x}=A038625()-A087235(n)

EXAMPLE

n=22: a(22)=10246936436-10246935644=792=22*36; a(n) is divisible by n, the quotients are in A087237.

CROSSREFS

Cf. A038623-A038627, A057809, A087235-A087240.

Sequence in context: A178822 A053168 A141388 * A077193 A056482 A123874

Adjacent sequences:  A087233 A087234 A087235 * A087237 A087238 A087239

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), Sep 04 2003

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.