

A210762


Triangle read by rows in which row n lists the positive integers smaller than the currently largest number in Recamán's sequence A005132 after the nth stage, but not yet present in Recamán's sequence.


2



2, 2, 4, 5, 4, 5, 4, 5, 4, 5, 8, 9, 10, 11, 12, 4, 5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 4, 5, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 4, 5, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 4, 5, 8, 9, 10, 14, 15, 16, 17, 18, 19, 4, 5, 8, 9, 10, 14, 15, 16, 17
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

2,1


COMMENTS

The number of positive integers in row n is A210612(n).


LINKS

Table of n, a(n) for n=2..73.
Index entries for sequences related to Recamán's sequence


EXAMPLE

Written as an irregular triangle:
2;
2, 4, 5;
4, 5;
4, 5;
4, 5, 8, 9, 10, 11, 12;
4, 5, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19;
4, 5, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19;
4, 5, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19;
4, 5, 8, 9, 10, 14, 15, 16, 17, 18, 19;


MAPLE

A210762 := proc(n)
local L, maxa ;
rec := [seq(A005132(j), j=0..n)] ;
maxa := max(op(rec)) ;
L := [] ;
for i from 0 to maxa do
if not member(i, rec) then
L := [op(L), i] ;
end if;
end do;
if nops(L) = 0 then
return [0] ;
end if;
L ;
end proc:
seq(op(A210762(n)), n=1..11) ; # R. J. Mathar, Apr 01 2012


CROSSREFS

Cf. A005132, A210606A210613.
Sequence in context: A179821 A292272 A292248 * A302985 A302983 A292271
Adjacent sequences: A210759 A210760 A210761 * A210763 A210764 A210765


KEYWORD

nonn,tabf,less


AUTHOR

Omar E. Pol, Mar 25 2012


STATUS

approved



