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A067482
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Powers of 4 with initial digit 4.
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13
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4, 4096, 4194304, 4294967296, 4398046511104, 4503599627370496, 4611686018427387904, 4722366482869645213696, 4835703278458516698824704, 4951760157141521099596496896
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Appearances to the contary, this sequence is not recursive with a geometric progression factor of 1024. Examples of a(n+1)/a(n) which are not 1024 are a(10)/a(9) = a(20)/a(19) = a(30)/a(29) = a(57)/a(56) = a(67)/a(66) = 2^106 or a(39)/a(38) = a(48)/a(47)= a(86)/a(85) = 2^116. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 10 2008
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LINKS
| Tanya Khovanova, Non Recursions
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CROSSREFS
| Cf. A000302, A067483.
Sequence in context: A069120 A110104 A024061 * A013830 A079682 A127235
Adjacent sequences: A067479 A067480 A067481 * A067483 A067484 A067485
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KEYWORD
| base,easy,nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 09 2002
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