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Search: id:A115419
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A115419 Numbers having a 1 in position 3 of their binary expansion. +0
6
8, 9, 10, 11, 12, 13, 14, 15, 24, 25, 26, 27, 28, 29, 30, 31, 40, 41, 42, 43, 44, 45, 46, 47, 56, 57, 58, 59, 60, 61, 62, 63, 72, 73, 74, 75, 76, 77, 78, 79, 88, 89, 90, 91, 92, 93, 94, 95, 104, 105, 106, 107, 108, 109, 110, 111, 120, 121, 122, 123, 124, 125, 126, 127 (list; graph; listen)
OFFSET

1,1

COMMENT

One of the mystery calculator sequences: A005408, A042964, A047566, A115419, A115420, A115421.

LINKS

Maths Magic, Mystery Calculator.

EXAMPLE

a(1) = 8 = 001000 in binary.

CROSSREFS

Cf. A005408, A042964, A047566, A115420, A115421.

Sequence in context: A046037 A089017 A023391 this_sequence A161639 A162788 A115842

Adjacent sequences: A115416 A115417 A115418 this_sequence A115420 A115421 A115422

KEYWORD

base,easy,nonn

AUTHOR

Jeremy Gardiner (jeremy.gardiner(AT)btinternet.com), Jan 22 2006

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.


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