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A153401
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a(n) is the least positive number such that in the representation of 2n+1, n>=4, as a sum of the form (2A000695(k)+a(n))+2(2A000695(l)+a(n)), both of numbers 2A000695(k)+a(n) and 2A000695(l)+a(n) are primes
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0
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1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 1, 3, 3, 3, 7, 3, 9, 1, 1, 5, 3, 7, 9, 3, 7, 1, 1, 19, 3, 0, 5, 7, 3, 3, 5
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