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A235711 Arithmetic derivative of quarter squares. 3
0, 0, 0, 1, 4, 5, 6, 16, 32, 24, 10, 31, 60, 41, 14, 92, 192, 156, 108, 123, 140, 87, 22, 188, 384, 220, 26, 131, 252, 247, 240, 608, 1024, 560, 34, 375, 756, 417, 38, 476, 960, 704, 420, 493, 572, 321, 46, 1036, 2112, 1340, 500, 635, 780, 1107, 1458, 1620 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

a(n) = A003415(A002620(n));

a(2*n) = A068720(n), n > 0.

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

PROG

(Haskell)

a235711 = a003415 . a002620

CROSSREFS

Cf. A068720.

Sequence in context: A224678 A049899 A217464 * A010753 A221174 A047195

Adjacent sequences:  A235708 A235709 A235710 * A235712 A235713 A235714

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 18 2014

STATUS

approved

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Last modified October 20 03:29 EDT 2018. Contains 316378 sequences. (Running on oeis4.)