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A206371 31*2^n + 1. 2
32, 63, 125, 249, 497, 993, 1985, 3969, 7937, 15873, 31745, 63489, 126977, 253953, 507905, 1015809, 2031617, 4063233, 8126465, 16252929, 32505857, 65011713, 130023425, 260046849, 520093697, 1040187393, 2080374785, 4160749569, 8321499137, 16642998273 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..29.

Index entries for linear recurrences with constant coefficients, signature (3,-2).

FORMULA

a(n) = 31*2^n + 1.

a(n) = A198275(n) + 2*A083686(n)

PROG

(MAGMA) [31*2^n +1 : n in [0..35]];

(PARI) a(n)=31<<n + 1 \\ Charles R Greathouse IV, Jun 01 2015

CROSSREFS

Cf. A198275, A083686.

Sequence in context: A138555 A050708 A132300 * A255561 A116318 A225722

Adjacent sequences:  A206368 A206369 A206370 * A206372 A206373 A206374

KEYWORD

nonn,easy

AUTHOR

Brad Clardy, Feb 07 2012

STATUS

approved

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Last modified October 23 02:32 EDT 2018. Contains 316518 sequences. (Running on oeis4.)