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A157255 Sigma_(n^n)(n). 0
1, 17, 7625597484988 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..3.

MATHEMATICA

Table[DivisorSigma[n^n, n], {n, 1, 5}]

CROSSREFS

Sequence in context: A178716 A013882 A271562 * A114432 A134686 A257305

Adjacent sequences:  A157252 A157253 A157254 * A157256 A157257 A157258

KEYWORD

bref,nonn

AUTHOR

Vladimir Joseph Stephan Orlovsky, Feb 26 2009

STATUS

approved

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Last modified July 23 15:58 EDT 2019. Contains 325258 sequences. (Running on oeis4.)