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A139228
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First differences of perfect numbers A000396.
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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) = A000396(n+1) - A000396(n).
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EXAMPLE
| a(1)=22 because A000396(1)=6 and A000396(2)=28 then 28-6 = 22.
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CROSSREFS
| Cf. A000396, A139229, A139230, A139231, A139232, A139233, A139234, A139235, A139236, A139237.
Sequence in context: A170655 A170703 A170741 * A158535 A171327 A077421
Adjacent sequences: A139225 A139226 A139227 * A139229 A139230 A139231
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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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