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!)
 A057047 Let R(i,j) be the rectangle with antidiagonals 1; 2,3; 4,5,6; ...; each k is an R(i(k),j(k)) and A057047(n)=j(2^n). 1
 1, 2, 3, 3, 6, 5, 3, 9, 21, 17, 12, 33, 91, 65, 88, 129, 168, 257, 307, 513, 501, 1025, 553, 2049, 5106, 4097, 3042, 8193, 580, 16385, 25488, 32769 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS CROSSREFS Sequence in context: A045892 A160791 A115973 * A101447 A119322 A014498 Adjacent sequences:  A057044 A057045 A057046 * A057048 A057049 A057050 KEYWORD nonn AUTHOR Clark Kimberling, Jul 30 2000 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 14 22:42 EST 2019. Contains 329987 sequences. (Running on oeis4.)