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A298037 Partial sums of A298036. 2
1, 13, 25, 61, 85, 145, 181, 265, 313, 421, 481, 613, 685, 841, 925, 1105, 1201, 1405, 1513, 1741, 1861, 2113, 2245, 2521, 2665, 2965, 3121, 3445, 3613, 3961, 4141, 4513, 4705, 5101, 5305, 5725, 5941, 6385, 6613, 7081, 7321, 7813, 8065, 8581, 8845, 9385, 9661 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Hakan Icoz, Table of n, a(n) for n = 0..20000

FORMULA

From Joerg Arndt, Aug 23 2020: (Start)

G.f.: (1 + 12*x + 10*x^2 + 12*x^3 + x^4)/((1 - x^2)^2*(1-x)).

a(n) = a(n-1) + 2*a(n-2) - 2*a(n-3) - a(n-4) + a(n-5). (End)

a(n)= A298036(n) + a(n-1). - Hakan Icoz, Aug 23 2020

EXAMPLE

a(1) = 12 + 1 = 13

a(2) = 12 + 13 = 25

a(3) = 36 + 25 = 61

CROSSREFS

Sequence in context: A005696 A147145 A283174 * A283255 A322662 A151776

Adjacent sequences:  A298034 A298035 A298036 * A298038 A298039 A298040

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 22 2018

EXTENSIONS

a(7)-a(50) from Hakan Icoz, Aug 22 2020

STATUS

approved

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Last modified September 23 20:42 EDT 2021. Contains 347617 sequences. (Running on oeis4.)