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A074287 Even numbers n such that the partial sum of the Kolakoski sequence (A000002) at n is less than 3n/2. 1

%I #6 Mar 31 2012 13:22:26

%S 32,34,52,134,194,196,202,230,248,254,256,258,260,266,268,272,274,276,

%T 278,280,284,286,292,294,296,298,304,702,762,764,770,780,782,786,788,

%U 790,792,794,796,798,800,802,804,806,808,810,812,814,816,818,820,822

%N Even numbers n such that the partial sum of the Kolakoski sequence (A000002) at n is less than 3n/2.

%H Nathaniel Johnston, <a href="/A074287/b074287.txt">Table of n, a(n) for n = 1..2500</a>

%e Kolakoski: 1,2,2,1,1,2,1,2,2,1,2,2,1,1,2,1,1,2,2,1,2 Partial sums are 1,3,5,6,7,9. We can see a pattern here - every even entry is close to a multiple of 3. The partial sum at 32 is 47 - 1 less than the expected 48.

%K nonn,easy

%O 1,1

%A _Jon Perry_, Sep 21 2002

%E Extended and offset corrected by _Nathaniel Johnston_, May 02 2011

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Last modified August 19 07:15 EDT 2024. Contains 375284 sequences. (Running on oeis4.)