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A157892 Values of k in A080075. 3
1, 1, 1, 3, 1, 3, 1, 5, 3, 7, 1, 5, 3, 7, 1, 9, 5, 11, 3, 13, 7, 15, 1, 9, 5, 11, 3, 13, 7, 15, 1, 17, 9, 19, 5, 21, 11, 23, 3, 25, 13, 27, 7, 29, 15, 31, 1, 17, 9, 19, 5, 21, 11, 23, 3, 25, 13, 27, 7, 29, 15, 31, 1, 33, 17, 35, 9, 37, 19, 39, 5, 41, 21, 43, 11, 45, 23, 47, 3, 49, 25, 51, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..83.

Zak Seidov, A157892

CROSSREFS

Cf. A157893 Values of m in A080075.

A080075 Proth numbers : of the form k*2^m + 1 for k odd, m >= 1 and 2^m > k.

Sequence in context: A249947 A193583 A013603 * A264441 A283461 A146907

Adjacent sequences:  A157889 A157890 A157891 * A157893 A157894 A157895

KEYWORD

nonn

AUTHOR

Zak Seidov, Mar 08 2009

STATUS

approved

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Last modified March 30 04:51 EDT 2017. Contains 284296 sequences.