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A164011 Zero together with row 11 of the array in A163280. 4

%I

%S 0,29,58,69,116,95,174,133,184,189,230,231,348,299,350,390,448,459,

%T 522,551,620,651,704,759,816,875,936,999,1064,1131,1200,1271,1344,

%U 1419,1496,1575,1656,1739,1824,1911,2000,2091,2184,2279,2376,2475,2576,2679,2784

%N Zero together with row 11 of the array in A163280.

%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (3, -3, 1).

%F Conjecture: a(n) = A098603(n), n > 20. [_R. J. Mathar_, Jul 31 2010]

%p 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

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

%K nonn

%O 0,2

%A _Omar E. Pol_, Aug 08 2009

%E Extended by _R. J. Mathar_, Feb 05 2010

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Last modified October 18 20:28 EDT 2019. Contains 328197 sequences. (Running on oeis4.)