This site is supported by donations to The OEIS Foundation.

 Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing. Other ways to donate

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A077015 a(1) = 1, continue by multiplying by the smallest composite number and then dividing by the smallest prime not used earlier and taking the integer part at every step. 0
 1, 4, 2, 12, 4, 32, 6, 54, 7, 70, 6, 72, 5, 70, 4, 60, 3, 48, 2, 36, 1, 20 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS For some k, n > k, a(n) =0 for all n. What is the value of k? All additional terms are zero. - Franklin T. Adams-Watters, Sep 07 2006 LINKS EXAMPLE a(2) = 1*4 = 4, a(3) = 4/2 = 2, a(4) = 2*6 = 12, a(5) = 12/3 = 4, a(6) = 4*8 = 32,a(7) = Floor[32/5] = 6. CROSSREFS Cf. A076916. Sequence in context: A188134 A226725 A137447 * A077016 A191436 A260434 Adjacent sequences:  A077012 A077013 A077014 * A077016 A077017 A077018 KEYWORD fini,full,nonn AUTHOR Amarnath Murthy, Oct 28 2002 EXTENSIONS More terms from Franklin T. Adams-Watters, Sep 07 2006 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 7 00:41 EST 2019. Contains 329816 sequences. (Running on oeis4.)