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A094178 Numbers n such that 4n+1 is divisible only by primes of form 4m+1 (i.e. by the Pythagorean primes A002144). +0
3
1, 3, 4, 6, 7, 9, 10, 13, 15, 16, 18, 21, 22, 24, 25, 27, 28, 31, 34, 36, 37, 39, 42, 43, 45, 46, 48, 49, 51, 55, 57, 58, 60, 64, 66, 67, 69, 70, 72, 73, 76, 78, 79, 81, 84, 87, 88, 91, 93, 94, 97, 99, 100, 102, 105, 106, 108, 111, 112, 114, 115, 120, 121, 123, 126, 127 (list; graph; listen)
OFFSET

1,2

COMMENT

For the actual numbers 4n+1, see A008846(n).

Complement of A124934; A125203(a(n)) = 0; A000290 and A000217 are subsequences. - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 24 2006

CROSSREFS

Sequence in context: A140100 A093610 A140758 this_sequence A085795 A068675 A026315

Adjacent sequences: A094175 A094176 A094177 this_sequence A094179 A094180 A094181

KEYWORD

nonn

AUTHOR

Lekraj Beedassy (blekraj(AT)yahoo.com), May 06 2004

EXTENSIONS

More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Jun 20 2004

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.


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