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A144365 a(n) = floor(A143176(n+1)/A143176(n)) when A143176(n) < A143176(n+1); or -ceiling(A143176(n)/A143176(n+1)) when A143176(n) > A143176(n+1). 0

%I #18 Feb 10 2024 03:59:32

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

%T 1,1,1,1,3,-2,-2,1,3,-3,3,-3,1,1,3,-3,1,1,1,1,3,-3,1,1,1,2,2,-3,5,-2,

%U -2,1,1,1,4,-3,1,1,5,-3,5,-2,-2,1,1,1,3,-3,1,1,3,-3,1,2,-2,1,4

%N a(n) = floor(A143176(n+1)/A143176(n)) when A143176(n) < A143176(n+1); or -ceiling(A143176(n)/A143176(n+1)) when A143176(n) > A143176(n+1).

%C It appears that the multipliers approach infinity while the divisors approach some finite value, although both are increasing over the given range.

%e A143176(3) = 6, A143176(3) = 12, so a(3) = floor(12/6) = 2.

%e A143176(13) = 1560, A143176(14) = 1260, so a(13) = -ceiling(1560/1260) = -2.

%Y Cf. A143176.

%K sign

%O 1,1

%A _Reikku Kulon_, Sep 18 2008

%E Edited and extended by _Max Alekseyev_, Feb 17 2011

%E a(64)-a(88) from _Amiram Eldar_, Feb 10 2024

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Last modified April 25 07:53 EDT 2024. Contains 371964 sequences. (Running on oeis4.)