The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A237347 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A237347

First differences of A078633.
(history; published version)

#4 by Reinhard Zumkeller at Tue Mar 18 17:58:17 EDT 2014

STATUS

editing

approved

#3 by Reinhard Zumkeller at Tue Mar 18 15:35:14 EDT 2014

COMMENTS

a(n) = A078633(n+1) - A078633(n);

2 <= a(n) <= 3;

a(A049068(n)) = 2; a(A002620(n)) = 3;

A237347(n) = abs(A167752(n)) + 2.

PROG

(Haskell)

a237347 n = a237347_list !! (n-1)

a237347_list = zipWith (-) (tail a078633_list) a078633_list

#2 by Reinhard Zumkeller at Tue Mar 18 15:33:52 EDT 2014

NAME

allocated for Reinhard ZumkellerFirst differences of A078633.

DATA

3, 3, 2, 3, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 2

OFFSET

1,1

LINKS

Reinhard Zumkeller, <a href="/A237347/b237347.txt">Table of n, a(n) for n = 1..10000</a>

KEYWORD

allocated

nonn

AUTHOR

Reinhard Zumkeller, Mar 18 2014

STATUS

approved

editing

#1 by Reinhard Zumkeller at Thu Feb 06 08:48:02 EST 2014

NAME

allocated for Reinhard Zumkeller

KEYWORD

allocated

STATUS

approved