A339495 - OEIS

A339495

Row sums of A339494.

1, 3, 9, 19, 37, 73, 144, 283, 556, 1093, 2149, 4225, 8306, 16329, 32102, 63111, 124073, 243921, 479536, 942743, 1853384, 3643657, 7163241, 14082561, 27685586, 54428429, 107003474, 210363291, 413563341, 813044121, 1598402656, 3142376883, 6177750292, 12145137293

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..34.

Index entries for linear recurrences with constant coefficients, signature (1,1,1,1,1).

FORMULA

a(n) = A339493(n) + Fibonacci(n + 2) for n >= 2.

a(n) = [x^n] -x*(x*(x + 1)*(x*(x*(x*(x*(x + 2) + 2) + 3) + 3) + 2) + 1)/(x^5 + x^4 + x^3 + x^2 + x - 1).

CROSSREFS

Cf. A339494, A339493, A000045, A333650.

Sequence in context: A014540 A293058 A294367 * A146694 A146050 A147500

Adjacent sequences: A339492 A339493 A339494 * A339496 A339497 A339498

KEYWORD

nonn

AUTHOR

Peter Luschny, Dec 07 2020

STATUS

approved