# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a021013 Showing 1-1 of 1 %I A021013 #13 Jul 13 2023 09:43:30 %S A021013 7,11,17,26,40,62,96,149,231,358,555,860,1333,2066,3202,4963,7692, %T A021013 11922,18478,28639,44388,68798,106632,165272,256160,397030,615369, %U A021013 953779,1478291,2291248,3551275,5504229,8531172,13222723,20494301 %N A021013 Pisot sequence P(7,11), a(0)=7, a(1)=11, a(n+1) is the nearest integer to a(n)^2/a(n-1). Agrees with A021014 only for n <= 20. %H A021013 Harvey P. Dale, Table of n, a(n) for n = 0..1000 %H A021013 Index entries for Pisot sequences %t A021013 nxt[{a_,b_}]:={b,Round[b^2/a]}; Transpose[NestList[nxt,{7,11},40]][[1]] (* _Harvey P. Dale_, Dec 17 2013 *) %Y A021013 Cf. A021014. %K A021013 nonn %O A021013 0,1 %A A021013 _R. K. Guy_ # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE