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A094970 a(n) = floor(7^n/2^n). 3
1, 3, 12, 42, 150, 525, 1838, 6433, 22518, 78815, 275854, 965491, 3379220, 11827271, 41395451, 144884079, 507094277, 1774829971, 6211904899, 21741667147, 76095835015, 266335422555, 932173978944, 3262608926305, 11419131242070 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

FORMULA

7^n = a(n)*2^n + A138616(n). - R. J. Mathar, Oct 26 2012

MATHEMATICA

Table[ Floor[(7/2)^n], {n, 0, 30}]

PROG

(MAGMA) [Floor(7^n / 2^n): n in [0..30]]; // Vincenzo Librandi, Sep 08 2011

(Maxima) A094970(n):=floor(7^n/2^n)$ makelist(A094970(n), n, 0, 30); /* Martin Ettl, Oct 25 2012 */

(PARI) a(n)=7^n>>n \\ Charles R Greathouse IV, Feb 04 2016

CROSSREFS

Cf. A002379, A094969-A094500.

Sequence in context: A017941 A066972 A067819 * A065179 A048121 A191112

Adjacent sequences:  A094967 A094968 A094969 * A094971 A094972 A094973

KEYWORD

nonn,easy

AUTHOR

Robert G. Wilson v, May 26 2004

STATUS

approved

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Last modified April 22 22:38 EDT 2019. Contains 322380 sequences. (Running on oeis4.)