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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
OFFSET
0,5
COMMENTS
a(n) = A003415(A002620(n));
a(2*n) = A068720(n), n > 0.
LINKS
PROG
(Haskell)
a235711 = a003415 . a002620
CROSSREFS
Cf. A068720.
Sequence in context: A224678 A049899 A217464 * A010753 A221174 A047195
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Mar 18 2014
STATUS
approved