The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A146763 Rank of terms ending in 0 in A061039. 1
 0, 4, 10, 14, 20, 24, 30, 34, 40, 44, 50, 54, 60, 64, 70, 74, 80, 84, 90, 94, 100, 104, 110, 114, 120, 124, 130, 134, 140, 144, 150, 154, 160, 164, 170, 174, 180, 184, 190, 194, 200, 204, 210, 214, 220, 224, 230, 234, 240, 244, 250, 254, 260, 264, 270, 274 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS From Paschen spectrum of hydrogen. Numbers that are congruent to 0 or 4 mod 10. - Philippe Deléham, Oct 18 2011 LINKS Index entries for linear recurrences with constant coefficients, signature (1,1,-1). FORMULA a(n) = 10*n-a(n-1)-6 (with a(0)=0). - Vincenzo Librandi, Nov 26 2010 a(n) = Sum_k>=0 {A030308(n,k)*b(k)} with b(0)=4 and b(k)=5*2^k=A020714(k) for k>0. - Philippe Deléham, Oct 18 2011 a(n) = (-1+(-1)^n+10*n)/2. a(n)=a(n-1)+a(n-2)-a(n-3). G.f.: x*(4+6*x) / ((1-x)^2*(1+x)). - Colin Barker, May 14 2012 MATHEMATICA Select[Range[0, 100], MemberQ[{0, 4}, Mod[#, 10]] &] (* K G Teal, Dec 02 2014 *) CROSSREFS Sequence in context: A310411 A310412 A310413 * A310414 A190346 A001581 Adjacent sequences:  A146760 A146761 A146762 * A146764 A146765 A146766 KEYWORD nonn,base,easy AUTHOR Paul Curtz, Nov 02 2008 STATUS approved

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

Last modified December 4 05:56 EST 2021. Contains 349470 sequences. (Running on oeis4.)