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A074612 a(n) = 4^n + 6^n. 1
2, 10, 52, 280, 1552, 8800, 50752, 296320, 1745152, 10339840, 61514752, 366991360, 2193559552, 13127802880, 78632599552, 471258726400, 2825404874752, 16943839313920, 101628676145152, 609634617917440 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..19.

Index entries for linear recurrences with constant coefficients, signature (10,-24).

FORMULA

G.f.: 1/(1-4*x)+1/(1-6*x). E.g.f.: e^(4*x)+e^(6*x). [Mohammad K. Azarian, Jan 11 2009]

a(n) = 10*a(n-1)-24*a(n-2) with a(0)=2, a(1)=10. [Vincenzo Librandi, Jul 21 2010]

MAPLE

A074612:=n->4^n+6^n: seq(A074612(n), n=0..30); # Wesley Ivan Hurt, Apr 27 2017

MATHEMATICA

Table[4^n + 6^n, {n, 0, 25}]

CROSSREFS

Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074600 - A074624.

Sequence in context: A020042 A075436 A319325 * A104497 A166694 A238796

Adjacent sequences:  A074609 A074610 A074611 * A074613 A074614 A074615

KEYWORD

easy,nonn

AUTHOR

Robert G. Wilson v, Aug 26 2002

STATUS

approved

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Last modified March 21 12:09 EDT 2019. Contains 321369 sequences. (Running on oeis4.)