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A173156 Numbers n such that max(tau(n),tau(n+1),tau(n+2),tau(n+3))- min(tau(n),tau(n+1),tau(n+2),tau(n+3)) = 1. 0
2, 20164, 155236, 293761, 293762, 643204, 1435204, 1444802, 5216653, 6120676, 8421601, 8421602 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

For n = 20164, max(tau(20164),tau(20165),tau(20166),tau(20167)) - min(tau(20164),tau(20165),tau(20166),tau(20167)) = max(9,8,8,8) - min(9,8,8,8) = 1.

MAPLE

with(numtheory):for n from 200000 to 1500000 do; if max(tau(n), tau(n+1), tau(n+2), tau(n+3))- min(tau(n), tau(n+1), tau(n+2), tau(n+3))= 1 then print(n); else fi ; od;

CROSSREFS

Sequence in context: A214544 A158344 A124364 * A214598 A242959 A123692

Adjacent sequences:  A173153 A173154 A173155 * A173157 A173158 A173159

KEYWORD

nonn

AUTHOR

Michel Lagneau, Feb 11 2010

STATUS

approved

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Last modified November 27 16:30 EST 2014. Contains 250240 sequences.