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A298025 Partial sums of A298024. 2
1, 5, 15, 29, 47, 71, 99, 131, 169, 211, 257, 309, 365, 425, 491, 561, 635, 715, 799, 887, 981, 1079, 1181, 1289, 1401, 1517, 1639, 1765, 1895, 2031, 2171, 2315, 2465, 2619, 2777, 2941, 3109, 3281, 3459, 3641, 3827, 4019, 4215, 4415, 4621, 4831, 5045, 5265 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Rémy Sigrist, Table of n, a(n) for n = 0..1000

FORMULA

Conjectures from Colin Barker, Jan 21 2018: (Start)

G.f.: (1 + 3*x + 6*x^2 + 3*x^3 + x^4) / ((1 - x)^3*(1 + x + x^2)).

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

(End)

CROSSREFS

Cf. A298024.

Sequence in context: A285406 A129393 A268581 * A162525 A212871 A188350

Adjacent sequences:  A298022 A298023 A298024 * A298026 A298027 A298028

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Jan 21 2018

EXTENSIONS

More terms from Rémy Sigrist, Jan 21 2018

STATUS

approved

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Last modified April 20 09:59 EDT 2019. Contains 322309 sequences. (Running on oeis4.)