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A164011 Zero together with row 11 of the array in A163280. 4
0, 29, 58, 69, 116, 95, 174, 133, 184, 189, 230, 231, 348, 299, 350, 390, 448, 459, 522, 551, 620, 651, 704, 759, 816, 875, 936, 999, 1064, 1131, 1200, 1271, 1344, 1419, 1496, 1575, 1656, 1739, 1824, 1911, 2000, 2091, 2184, 2279, 2376, 2475, 2576, 2679, 2784 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..48.

Index entries for linear recurrences with constant coefficients, signature (3, -3, 1).

FORMULA

Conjecture: a(n) = A098603(n), n > 20. [R. J. Mathar, Jul 31 2010]

MAPLE

A033676 := proc(n) local dvs; dvs := sort(convert(numtheory[divisors](n), list)) ; op(floor((nops(dvs)+1)/2) , dvs) ; end: A163280 := proc(n, k) local r, T ; r := 0 ; for T from k^2 by k do if A033676(T) = k then r := r+1 ; if r = n then RETURN(T) ; fi; fi; od: end: printf("0, ") ; for n from 1 to 70 do printf("%d, ", A163280(11, n)) ; end do ; # R. J. Mathar, Feb 05 2010

CROSSREFS

Cf. A008578, A161344, A161345, A163280, A164000, A164010, A164012.

Sequence in context: A123848 A040812 A184081 * A048846 A195819 A248786

Adjacent sequences:  A164008 A164009 A164010 * A164012 A164013 A164014

KEYWORD

nonn

AUTHOR

Omar E. Pol, Aug 08 2009

EXTENSIONS

Extended by R. J. Mathar, Feb 05 2010

STATUS

approved

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Last modified June 25 18:36 EDT 2019. Contains 324353 sequences. (Running on oeis4.)