This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A235036 #10 Jan 29 2014 12:25:00 %S A235036 1,4,6,8,12,14,16,22,24,26,28,32,38,44,48,52,56,62,64,74,76,82,88,94, %T A235036 96,104,111,112,118,122,123,124,128,134,146,148,152,164,176,188,192, %U A235036 194,206,208,218,219,222,224,236,244,246,248,256,262,268,274,292,296,304 %N A235036 Nonprime numbers which are factored to the same set of primes in Z as to the irreducible polynomials in GF(2)[X]. %C A235036 Note: Start indexing from n=1 if you want just composite numbers. a(0)=1 is the only nonprime, noncomposite in this list. %H A235036 Antti Karttunen, <a href="/A235036/b235036.txt">Table of n, a(n) for n = 0..1890</a> %H A235036 <a href="/index/Ge#GF2X">Index entries for sequences operating on (or containing) GF(2)[X]-polynomials</a> %o A235036 (Scheme, with _Antti Karttunen_'s IntSeq-library) %o A235036 (define A235036 (MATCHING-POS 0 1 (lambda (n) (and (not (prime? n)) (equal? (ifactor n) (GF2Xfactor n)))))) %Y A235036 These are nonprime (and nonzero) numbers in A235032. Also a subsequence of A235045 and (apart from 1) of A091212. A235039 gives the odd terms. %K A235036 nonn %O A235036 0,2 %A A235036 _Antti Karttunen_, Jan 02 2014