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A268332 Squarefree numbers differing by more than 3 from any other squarefree number. 6
2526, 44405, 47527, 47973, 55779, 72474, 101037, 106327, 106674, 109023, 110107, 133577, 153173, 165574, 183553, 186247, 193026, 196747, 208847, 209674, 212127, 218527, 220209, 234622, 237522, 245149, 261478, 266853, 269953, 308649, 328877, 334522, 342066, 364151, 370785, 375823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Christopher E. Thompson, Table of n, a(n) for n = 1..1000

MAPLE

SF:= select(numtheory:-issqrfree, [$1..10^6]):

SF[select(i -> SF[i]-SF[i-1]>=4  and SF[i+1]-SF[i]>=4, [$2..nops(SF)-1])]; # Robert Israel, Feb 02 2016

CROSSREFS

Cf. A005117, A073247, A268331, A268333, A268334.

Sequence in context: A251918 A111729 A252288 * A203440 A231968 A172142

Adjacent sequences:  A268329 A268330 A268331 * A268333 A268334 A268335

KEYWORD

nonn

AUTHOR

Christopher E. Thompson, Feb 01 2016

STATUS

approved

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Last modified April 22 13:29 EDT 2021. Contains 343177 sequences. (Running on oeis4.)