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A090346
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Number of divisors of prime(n) + prime(n+1).
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0
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2, 4, 6, 6, 8, 8, 9, 8, 6, 12, 6, 8, 12, 12, 9, 10, 16, 8, 8, 15, 8, 10, 6, 8, 12, 12, 16, 16, 8, 20, 8, 6, 12, 18, 18, 12, 14, 16, 12, 12, 24, 12, 16, 16, 18, 8, 8, 18, 16, 16, 8, 24, 12, 6, 16, 12, 24, 6, 12, 12, 21, 24, 8, 20, 24, 20, 6, 18, 16, 16, 8, 12, 12, 10, 8, 6, 8, 16, 20, 18
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Positions of odd terms (A064397): 7,15,20,61,152,190,293,377,492,558,789,919,942,1768,2343,2429,... [From Zak Seidov (zakseidov(AT)yahoo.com), Oct 12 2010]
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MATHEMATICA
| d[i_] := DivisorSigma[0, Prime[i] + Prime[i + 1]]; Table[d[i], {i, 1, 100}]
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CROSSREFS
| Sequence in context: A161655 A092517 A128558 * A092989 A065558 A035280
Adjacent sequences: A090343 A090344 A090345 * A090347 A090348 A090349
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KEYWORD
| nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 28 2004
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