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 A324792 First differences of A325056: distance in A076042 from n-th low point to the next. 4

%I

%S 5,5,9,15,25,45,77,133,231,401,693,1201,2081,3603,6241,10809,18723,

%T 32429,56169,97287,168505,291861,505517,875581,1516551,2626743,

%U 4549653,7880231,13648959,23640691,40946879,70922073,122840635,212766221,368521905,638298663

%N First differences of A325056: distance in A076042 from n-th low point to the next.

%H Giovanni Resta, <a href="/A324792/b324792.txt">Table of n, a(n) for n = 0..41</a>

%t a=b=c=d=n=0; L={0}; While[Length[L] < 22, n++; a=b; b=c; c=d; d=c + If[c < n^2, n^2, -n^2]; If[a > b < c < d, AppendTo[L, n-2]]]; Differences@ L (* Giovanni Resta, Oct 01 2019 *)

%Y Cf. A076042, A325056, A324791.

%Y If we use primes instead of squares we get A008348, A309226, A324782, A324783.

%K nonn

%O 0,1

%A _N. J. A. Sloane_, Sep 04 2019

%E More terms from _Giovanni Resta_, Oct 01 2019

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Last modified December 9 03:27 EST 2019. Contains 329872 sequences. (Running on oeis4.)