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 A236834 Numbers that do not occur as results of "downward" remultiplication (N -> GF(2)[X]) of any number; numbers not present in A234741. 13
 25, 50, 55, 87, 91, 100, 110, 115, 117, 133, 143, 145, 159, 171, 174, 182, 185, 200, 203, 213, 220, 230, 234, 237, 247, 249, 253, 266, 267, 279, 285, 286, 290, 299, 301, 318, 319, 321, 333, 339, 342, 345, 348, 351, 355, 357, 361, 364, 369, 370, 375, 385, 391, 395, 400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Numbers that do not occur in A234741 (A236841). This is a subsequence of A236838, thus all terms are GF(2)[X]-multiples of some of the terms of A091214. (Cf. also A236844). a(5)=91 is the first term that does not occur in A236849. On the other hand, A236849(4)=75, is the first term in the latter which does not occur here. LINKS Antti Karttunen, Table of n, a(n) for n = 1..2525 PROG (Scheme, with Antti Karttunen's IntSeq-library, two variants) (define A236834 (ZERO-POS 1 0 A236833)) (define A236834 (ZERO-POS 1 0 A236861)) CROSSREFS Complement: A236841. This sequence is a setwise difference of A236838 and A236839. A091214 is a subsequence. Positions of zeros in A236833, A236836, A236837 and A236861 Cf. also A236844, A234741, A236835. Sequence in context: A040600 A277190 A236849 * A033902 A009177 A118882 Adjacent sequences:  A236831 A236832 A236833 * A236835 A236836 A236837 KEYWORD nonn AUTHOR Antti Karttunen, Jan 31 2014 STATUS approved

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Last modified October 22 22:34 EDT 2019. Contains 328335 sequences. (Running on oeis4.)