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A139325 Triangle read by rows: T(n,k) = number of primes in the k-th row of the square of the first n^2 odd numbers written consecutively in rows of length n, 1<=k<=n. 5

%I #2 Mar 30 2012 18:51:00

%S 0,1,2,2,2,2,3,2,3,2,3,4,2,2,3,4,4,2,4,2,3,5,3,4,3,3,4,2,5,5,4,3,4,2,

%T 5,2,6,4,5,4,4,4,2,4,3,7,4,5,5,3,5,4,3,4,5,7,6,4,5,6,3,4,4,5,2,6,8,6,

%U 5,4,6,4,5,4,4,5,4,5,8,6,6,6,4,5,6,4,5,4,6,3,4,8,7,7,6,5,5,5,4,6,5,4,4,5,5

%N Triangle read by rows: T(n,k) = number of primes in the k-th row of the square of the first n^2 odd numbers written consecutively in rows of length n, 1<=k<=n.

%C A139326(n) = Min{T(n,k): 1<=k<=n};

%C A139327(n) = Max{T(n,k): 1<=k<=n};

%C A139328(n) gives sums of rows;

%C T(n,1) = A099802(n) - 1.

%Y Cf. A083415.

%K nonn,tabl

%O 1,3

%A _Reinhard Zumkeller_, Apr 14 2008

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Last modified April 25 01:35 EDT 2024. Contains 371964 sequences. (Running on oeis4.)