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A063750 Number of divisors of the Demlo numbers: d(A002477(n)). +0
1
1, 3, 9, 9, 9, 243, 9, 81, 45, 81, 9, 2187, 27, 81, 729, 729, 9, 10935, 3, 2187, 2187, 1215, 3, 59049, 243, 729, 567, 6561, 243, 1594323, 27, 177147, 729, 729, 2187, 295245, 27, 27, 729, 177147, 81, 7971615, 81, 98415, 32805, 729 (list; graph; listen)
OFFSET

0,2

LINKS

Harry J. Smith, Table of n, a(n) for n=0,...,80

PROGRAM

(PARI) j=[]; for(n=0, 45, j=concat(j, numdiv( ((10^(n+1)-1)/9)^2) )); j

(PARI) { for (n=0, 80, a=numdiv(((10^(n + 1) - 1)/9)^2); write("b063750.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 29 2009]

CROSSREFS

Cf. A002477.

Sequence in context: A100401 A004166 A110759 this_sequence A143225 A099720 A162349

Adjacent sequences: A063747 A063748 A063749 this_sequence A063751 A063752 A063753

KEYWORD

nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Aug 11 2001

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Last modified November 22 20:51 EST 2009. Contains 167312 sequences.


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