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A115811 Integers i such that 9*i = 25 X i, but 17*i is not 49 X i. 2

%I

%S 15,30,60,120,240,480,960,1920,3840,3855,7680,7695,7710,7711,7951,

%T 15360,15375,15390,15391,15420,15422,15423,15887,15902,15903,16143,

%U 30720,30735,30750,30751,30780,30782,30783,30840,30844,30846,30847

%N Integers i such that 9*i = 25 X i, but 17*i is not 49 X i.

%C Here * stands for ordinary multiplication and X means carryless (GF(2)[X]) multiplication (A048720).

%H <a href="/index/Con#CongruCrossDomain">Index entries for sequences defined by congruent products between domains N and GF(2)[X]</a>

%Y Cf. Setwise difference of A115801 and A115809. A115812 shows this sequence in binary.

%K nonn

%O 1,1

%A _Antti Karttunen_, Feb 01 2006

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Last modified October 28 17:55 EDT 2021. Contains 348329 sequences. (Running on oeis4.)