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Differences between consecutive pseudoprimes to base 2.
3

%I #8 Jul 10 2024 15:54:23

%S 220,84,460,282,342,176,142,418,236,120,456,756,336,2,310,780,1140,

%T 1356,364,160,430,1350,324,720,1496,940,6,234,510,1218,132,864,2000,

%U 16,1230,3050,376,2384,3580,780

%N Differences between consecutive pseudoprimes to base 2.

%C These are the differences between the numbers in sequence A001567.

%H Karl K. Hovekamp, <a href="/A173619/b173619.txt">Table of n, a(n) for n = 1..101628</a>

%e 341, 561, 645, 1105, .... (sequence A001567)

%e abs(341-561)=220

%e abs(561-645)=84

%e abs(645-1105)=460

%e ....

%Y Cf. A001567.

%K nonn

%O 1,1

%A _Karl Hovekamp_, Feb 22 2010