A164011 Zero together with row 11 of the array in A163280.

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

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: A184081 A333912 A333913 * 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