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A081334 sigma(2*n^2) modulo 4. 0
3, 3, 3, 3, 1, 3, 3, 3, 3, 1, 3, 3, 1, 3, 1, 3, 1, 3, 3, 1, 3, 3, 3, 3, 3, 1, 3, 3, 1, 1, 3, 3, 3, 1, 1, 3, 1, 3, 1, 1, 1, 3, 3, 3, 1, 3, 3, 3, 3, 3, 1, 1, 1, 3, 1, 3, 3, 1, 3, 1, 1, 3, 3, 3, 3, 3, 3, 1, 3, 1, 3, 3, 1, 1, 3, 3, 3, 1, 3, 1, 3, 1, 3, 3, 3, 3, 1, 3, 1, 1, 1, 3, 3, 3, 1, 3, 1, 3, 3, 3, 1, 1, 3, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..105.

CROSSREFS

See also A065765.

Sequence in context: A320085 A172368 A138070 * A106694 A183051 A031355

Adjacent sequences:  A081331 A081332 A081333 * A081335 A081336 A081337

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Apr 20 2003

STATUS

approved

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Last modified January 23 21:44 EST 2022. Contains 350515 sequences. (Running on oeis4.)