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 A161374 "Punctual" binary numbers. Complement of A161373 2
 0, 1, 2, 4, 8, 10, 16, 22, 32, 36, 64, 128, 136, 256, 512, 528, 1024, 2048, 2080, 4096, 8192, 8256, 16384, 32768, 32896, 65536, 131072, 131328, 262144, 524288, 524800, 1048576, 2097152, 2098176, 4194304, 8388608, 8390656, 16777216, 33554432 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS A161373 U A161374 = A000027 Whether or not 22 is punctual or early bird is a matter interpretation of "early occurrence" in the definition of A161373: 10110 occurs as the right 3 bits of 21 (10101) and the left 2 bits of 22 (10110) itself, which is ahead of the natural position, but not *completely* ahead of it. One can show (see weblink) the 22 is the only such case of doubt. [From Hagen von Eitzen, Jun 29 2009] LINKS H. v. Eitzen, Binary Early Birds (2009). [From Hagen von Eitzen, Jun 29 2009] FORMULA Contribution from Hagen von Eitzen, Jun 29 2009: (Start) G.f.: (1+x+2x^2)/(2-8x^3) + x/(2-4x^3) -1/2 -x + x^4 + 4x^5 + 2x^6 + 6x^7 + 6x^8 If q>=3 then a(3q) = 2^(2q-1), a(3q+1) = 2^(2q-1) + 2^(q-1), a(3q+2) = 2^(2q). (End) CROSSREFS Cf. A116700, A161373 Sequence in context: A068382 A025612 A102248 * A272062 A045795 A226816 Adjacent sequences:  A161371 A161372 A161373 * A161375 A161376 A161377 KEYWORD easy,nonn AUTHOR Paolo P. Lava and Giorgio Balzarotti, Jun 08 2009 EXTENSIONS Offset corrected as customary for lists, 20 removed by Hagen von Eitzen, Jun 27 2009 More terms from Hagen von Eitzen, Jun 29 2009 STATUS approved

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Last modified January 23 07:07 EST 2020. Contains 331168 sequences. (Running on oeis4.)