The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A164008 Zero together with row 8 of the array in A163280. 5
0, 17, 34, 39, 68, 65, 102, 98, 128, 153, 170, 198, 228, 260, 294, 330, 368, 408, 450, 494, 540, 588, 638, 690, 744, 800, 858, 918, 980, 1044, 1110, 1178, 1248, 1320, 1394, 1470, 1548, 1628, 1710, 1794, 1880, 1968, 2058, 2150, 2244, 2340, 2438, 2538, 2640 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
Conjecture: a(n) = A028563(n), n > 9. [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(8, n)) ; end do ; # R. J. Mathar, Feb 05 2010
MATHEMATICA
LinearRecurrence[{3, -3, 1}, {0, 17, 34, 39, 68, 65, 102, 98, 128, 153, 170, 198, 228}, 50] (* Harvey P. Dale, Dec 25 2022 *)
CROSSREFS
Sequence in context: A135637 A040272 A062054 * A013577 A234942 A044857
KEYWORD
nonn
AUTHOR
Omar E. Pol, Aug 08 2009
EXTENSIONS
Terms beyond 228 from R. J. Mathar, Feb 05 2010
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 17 10:05 EDT 2024. Contains 373445 sequences. (Running on oeis4.)