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Last prime in n-th group in A077280.
4

%I #10 Mar 30 2012 17:26:08

%S 23,1021,2179,4051,4153,50377,66643,173647,2076913

%N Last prime in n-th group in A077280.

%C Partition of sequence of primes in groups such that sum of terms in each group is a square: {2-23}, {29-1021}, {1031-2179}, {2203-4051}, {4057-4153}, {4157-50377}, {50383-66643}, {66653-173647},{173651-2076913},{2076917-?},

%C ...; A077280(n) gives the number of terms in n-th group; A077281(n)^2 gives the sum of terms in n-th group; A077282(n) gives the first term in n-th group; A077283(n) gives the last term in n-th group.

%Y Cf. A077280, A077281, A077282.

%K nonn

%O 1,1

%A _Zak Seidov_, Nov 02 2002

%E a(9) from _Zak Seidov_, Sep 28 2011