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A139231
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First differences of Mersenne primes A000668.
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10
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OFFSET
| 1,1
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LINKS
| O. E. Pol, Determinacion geometrica de los numeros primos y perfectos".
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FORMULA
| a(n) = A000668(n+1) - A000668(n).
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EXAMPLE
| a(1)=4 because A000668(1)=3 and A000668(2)=7 then 7-3 = 4.
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CROSSREFS
| Cf. A000668, A139228, A139229, A139230, A139232, A139233, A139234, A139235, A139236, A139237.
Sequence in context: A119920 A100738 A139238 * A052462 A048806 A043009
Adjacent sequences: A139228 A139229 A139230 * A139232 A139233 A139234
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KEYWORD
| nonn
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AUTHOR
| Omar E. Pol (info(AT)polprimos.com), Apr 18 2008
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