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 A175766 Greater of "twin numbers": Omega(n) = Omega(n - 2^Omega(n)), where Omega is A001222. 1
 5, 7, 10, 13, 14, 19, 20, 25, 26, 28, 31, 38, 39, 40, 43, 50, 52, 55, 56, 61, 62, 69, 73, 76, 78, 80, 86, 91, 95, 100, 103, 104, 109, 110, 112, 115, 119, 122, 123, 124, 125, 133, 138, 139, 145, 146, 151, 152, 156, 159, 160, 172, 181, 182, 187, 190, 193, 199, 200, 205, 206, 208 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Generalizes the twin primes. Superset of A006512. LINKS EXAMPLE "Twin numbers" are (3, 5), (5, 7), (6, 10), (11, 13), (10, 14), (17, 19), (12, 20), (21, 25), (22, 26), (20, 28), (29, 31), (34, 38), (35, 39), (24, 40), (41, 43), (42, 50), (44, 52), (51, 55), (40, 56), (59, 61), (58, 62), (65, 69), (71, 73), ... PROG (PARI) for(n=1, 1e3, o=bigomega(n); trap(, , if(o==bigomega(n-2^o), print1(n", ")))) CROSSREFS Cf. A001222, A006512, A175612. Sequence in context: A097700 A172321 A154689 * A243187 A179196 A024325 Adjacent sequences:  A175763 A175764 A175765 * A175767 A175768 A175769 KEYWORD nonn AUTHOR Juri-Stepan Gerasimov, Sep 01 2010 EXTENSIONS Entry rewritten by Charles R Greathouse IV, Sep 01 2010 STATUS approved

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Last modified May 19 20:41 EDT 2019. Contains 323410 sequences. (Running on oeis4.)