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A003176
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Integer part of 24(2^n-1)/n.
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4
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24, 36, 56, 90, 148, 252, 435, 765, 1362, 2455, 4466, 8190, 15121, 28085, 52427, 98302, 185041, 349524, 662257, 1258290, 2396744, 4575603, 8753329, 16777215, 32212253, 61946642, 119304646, 230087532
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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REFERENCES
| R. J. Penrose, Twistor Newsletter, No. 41, p. 22, 1996.
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 1..300
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PROG
| (MAGMA) [Floor(24*(2^n-1)/n): n in [1..45]]; // Vincenzo Librandi, May 08 2011
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CROSSREFS
| Cf. A003177, A121056, A000799.
Sequence in context: A165602 A124283 A143645 * A003138 A003177 A038530
Adjacent sequences: A003173 A003174 A003175 * A003177 A003178 A003179
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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