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Search: id:A066872
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| A066872 |
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p^2 + 1 as p runs through the primes. |
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+0
5
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| 5, 10, 26, 50, 122, 170, 290, 362, 530, 842, 962, 1370, 1682, 1850, 2210, 2810, 3482, 3722, 4490, 5042, 5330, 6242, 6890, 7922, 9410, 10202, 10610, 11450, 11882, 12770, 16130, 17162, 18770, 19322, 22202, 22802, 24650, 26570, 27890, 29930, 32042
(list; graph; listen)
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OFFSET
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1,1
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MATHEMATICA
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lst={}; Do[AppendTo[lst, DivisorSigma[2, Prime[n]]], {n, 5!}]; lst...and/or... lst={}; Do[AppendTo[lst, Prime[n]^2+1], {n, 5!}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Mar 11 2009]
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CROSSREFS
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Sequence in context: A038252 A083010 A166388 this_sequence A063478 A025486 A128665
Adjacent sequences: A066869 A066870 A066871 this_sequence A066873 A066874 A066875
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KEYWORD
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easy,nonn
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AUTHOR
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Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Jan 21 2002
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