A050122 - OEIS

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A050122

Numbers of the form Fibonacci(i)*Lucas(j), i <= j.

0, 1, 3, 4, 7, 8, 11, 14, 18, 21, 22, 29, 33, 36, 47, 54, 55, 58, 76, 87, 90, 94, 123, 141, 144, 145, 152, 199, 228, 232, 235, 246, 322, 369, 376, 377, 380, 398, 521, 597, 608, 611, 615, 644, 843, 966, 984, 987, 988, 995, 1042, 1364 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	LINKS	`R. J. Mathar, Table of n, a(n) for n = 1..171`
	MAPLE	`isA050122 := proc(n)` `local i, j, f, l ;` `if n =0 then` `true;` `else` `for i from 1 do` `f := A000045(i) ;` `if f > n then` `return false;` `else` `for j from i do` `l := A000032(j) ;` `if fl = n then` `return true;` `elif fl > n and j> 2 then` `break;` `end if;` `end do:` `end if;` `end do:` `end if;` `end proc:` `A050122 := proc(n)` `option remember;` `local a;` `if n = 1 then` `0;` `else` `for a from procname(n-1)+1 do` `if isA050122(a) then` `return a;` `end if;` `end do:` `end if;` `end proc:` `seq(A050122(n), n=1..80) ; # R. J. Mathar, Jan 04 2017`
	CROSSREFS	`Cf. A000032, A000045.` `Sequence in context: A133675 A332068 A173467 * A179016 A003657 A003644` `Adjacent sequences: A050119 A050120 A050121 * A050123 A050124 A050125`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling`
	STATUS	`approved`

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Last modified December 4 19:07 EST 2022. Contains 358563 sequences. (Running on oeis4.)