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A033870 Divisors = 1 (mod 4) of Descartes's 198585576189. 0
1, 9, 13, 21, 33, 49, 77, 117, 121, 169, 273, 429, 441, 637, 693, 1001, 1089, 1521, 1573, 1617, 2541, 3549, 5577, 5733, 5929, 8281, 9009, 13013, 14157, 20449, 21021, 22021, 33033, 53361, 74529, 77077, 117117, 184041, 198189, 273273, 286273 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A026045 A124249 A137168 * A151901 A157199 A097539

Adjacent sequences:  A033867 A033868 A033869 * A033871 A033872 A033873

KEYWORD

easy,nonn

AUTHOR

Naohiro Nomoto (6284968128(AT)geocities.co.jp)

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.