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A060926 Row sums of triangle A060923 (even part of bisection of Lucas triangle). 3
1, 5, 29, 149, 765, 3941, 20301, 104565, 538589, 2774149, 14289005, 73599381, 379093501, 1952623525, 10057515149, 51803949749, 266830242845, 1374381274821, 7079122173101, 36462931836885 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

a(n)=sum(A060923(n, m), m=0..n).

a(n)=A060928(n-1)+4*A060928(n-2), n >= 2.

G.f.: (1+4*x^2)/(1-5*x-4*x^3).

CROSSREFS

A060927 (Row sums of A060924).

Sequence in context: A027864 A198764 A065541 * A098780 A146178 A015537

Adjacent sequences:  A060923 A060924 A060925 * A060927 A060928 A060929

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang(AT)physik.uni-karlsruhe.de), Apr 20 2001

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Last modified February 16 08:13 EST 2012. Contains 205893 sequences.