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A158908 First differences of A061238. 0
9, 18, 18, 36, 18, 36, 36, 18, 36, 36, 18, 36, 36, 36, 54, 18, 18, 90, 18, 54, 18, 18, 144, 18, 18, 54, 18, 18, 36, 36, 72, 18, 54, 18, 36, 72, 18, 54, 72, 18, 36, 36, 36, 54, 54, 54, 90, 36, 54, 72, 54, 36, 18, 18, 54, 54, 36, 54, 36, 18, 72, 18, 18, 18, 54, 18, 72, 36, 36, 18, 18 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Obviously all entries are multiples of 9.

First differences of some the 6 prime modulo classes shown in A061237 to A061241 are also in A158910 and A158955.

LINKS

Table of n, a(n) for n=1..71.

CROSSREFS

Sequence in context: A034728 A129855 A250769 * A202188 A060993 A297267

Adjacent sequences:  A158905 A158906 A158907 * A158909 A158910 A158911

KEYWORD

nonn,less

AUTHOR

Paul Curtz, Mar 30 2009

EXTENSIONS

Edited and extended by R. J. Mathar, Apr 06 2009

STATUS

approved

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Last modified April 12 18:58 EDT 2021. Contains 342932 sequences. (Running on oeis4.)