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A086148 Sum of the orders of the elements in the dihedral group D_2n. +0
1
3, 7, 13, 19, 31, 33, 57, 59, 79, 83, 133, 101, 183, 157, 177, 203, 307, 219, 381, 271, 343, 377, 553, 349, 571, 523, 601, 529, 871, 501, 993, 747, 843, 887, 973, 743, 1407, 1105, 1177, 983, 1723, 987, 1893, 1309, 1371, 1613, 2257, 1293, 2199, 1663, 2013 (list; graph; listen)
OFFSET

1,1

FORMULA

2*n+Sum_{d|n} d*phi(d). - Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 27 2003

CROSSREFS

Cf. A057660.

Sequence in context: A147614 A031215 A099957 this_sequence A167462 A007645 A144919

Adjacent sequences: A086145 A086146 A086147 this_sequence A086149 A086150 A086151

KEYWORD

nonn

AUTHOR

Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 25 2003

EXTENSIONS

More terms from Vladeta Jovovic (vladeta(AT)eunet.rs), Aug 27 2003

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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