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First differences of A278517; run lengths in A260731.
8

%I #7 Nov 29 2016 22:39:55

%S 1,3,4,1,3,4,2,2,4,1,4,3,2,2,4,3,2,3,1,3,4,2,3,3,3,3,2,2,3,3,1,3,4,2,

%T 3,3,2,2,4,2,3,4,3,4,1,4,3,2,3,3,3,3,2,2,2,4,3,2,3,2,2,4,1,3,4,2,2,4,

%U 3,3,3,3,4,2,3,3,3,3,3,4,3,1,3,4,2,3,4,3,4,2,3,3,3,2,3,3,2,3,2,3,3,3,3,2,1,3,4,2,3,3,2,3,3,2,3,3,3,1,4,3,2

%N First differences of A278517; run lengths in A260731.

%H Antti Karttunen, <a href="/A278518/b278518.txt">Table of n, a(n) for n = 0..11363</a>

%F a(n) = A278517(1+n) - A278517(n).

%F a(n) = 1 + (A278519(n) - A278517(n)).

%F a(n) = 1 + A278521(n) + A278522(n).

%o (Scheme)

%o (define (A278518 n) (- (A278517 (+ 1 n)) (A278517 n)))

%Y Cf. A260731, A278516, A278517, A278519, A278521, A278522.

%K nonn

%O 0,2

%A _Antti Karttunen_, Nov 28 2016