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A210762
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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 n-th stage, but not yet present in Recamán's sequence.
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2
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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
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refs;
listen;
history;
text;
internal format)
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OFFSET
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2,1
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COMMENTS
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The number of positive integers in row n is A210612(n).
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LINKS
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EXAMPLE
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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;
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MAPLE
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local L, maxa ;
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:
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CROSSREFS
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KEYWORD
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nonn,tabf,less
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AUTHOR
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STATUS
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approved
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