[go: up one dir, main page]

login
A115342
1 + (n-6)*2^(n-1).
1
1, 65, 257, 769, 2049, 5121, 12289, 28673, 65537, 147457, 327681, 720897, 1572865, 3407873, 7340033, 15728641, 33554433, 71303169, 150994945, 318767105, 671088641, 1409286145, 2952790017, 6174015489, 12884901889, 26843545601, 55834574849, 115964116993
OFFSET
6,2
COMMENTS
Formula defining A115618 but with a typo.
REFERENCES
R. J. Lang, Origami approximate geometric constructions, in Tribute to a Mathemagician, Peters, 2005, pp. 223-239.
MAPLE
A115342:=n->1 + (n - 6)*2^(n - 1); seq(A115342(n), n=6..40); # Wesley Ivan Hurt, Jan 23 2014
MATHEMATICA
Table[1 + (n - 6)*2^(n - 1), {n, 6, 40}] (* T. D. Noe, Apr 01 2013 *)
PROG
(PARI) a(n) = 1 + (n-6)*2^(n-1) \\ Michel Marcus, Apr 01 2013
CROSSREFS
Cf. A115618.
Sequence in context: A305157 A038637 A158686 * A360819 A036547 A031694
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 11 2006
STATUS
approved