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A050450
Sum_{d|n, d=1 mod 4} d^2.
5
1, 1, 1, 1, 26, 1, 1, 1, 82, 26, 1, 1, 170, 1, 26, 1, 290, 82, 1, 26, 442, 1, 1, 1, 651, 170, 82, 1, 842, 26, 1, 1, 1090, 290, 26, 82, 1370, 1, 170, 26, 1682, 442, 1, 1, 2132, 1, 1, 1, 2402, 651, 290, 170, 2810, 82, 26, 1, 3250, 842, 1, 26, 3722, 1
OFFSET
1,5
LINKS
PROG
(Haskell)
a050450 = sum . map (^ 2) . filter ((== 1) . (`mod` 4)) . a027750_row
-- Reinhard Zumkeller, Jun 17 2013
CROSSREFS
Sequence in context: A040682 A040683 A040684 * A040680 A040679 A040678
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 23 1999
STATUS
approved