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A096768
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Numbers n of the form k + reverse(k) for two or more values of k.
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0
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22, 33, 44, 55, 66, 77, 88, 99, 110, 121, 132, 143, 154, 165, 176, 187, 202, 222, 242, 262, 282, 302, 303, 322, 323, 342, 343, 362, 363, 382, 383, 403, 404, 423, 424, 443, 444, 463, 464, 483, 484, 504, 505, 524, 525, 544, 545, 564, 565, 584, 585, 605, 606
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refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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LINKS
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Table of n, a(n) for n=0..52.
Index entries for sequences related to Reverse and Add!
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EXAMPLE
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22 belongs to the sequence since 11 + 11 = 22 and 20 + 2 = 22 (k = {11, 20}); 33 belongs to the sequence since 12 + 21 = 33, 21 + 12 = 33 and 30 + 3 = 33 (k = {12, 21, 30}).
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MAPLE
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reverse:= proc (d) local n, m; m:=0; n:=d; while n>0 do m:=m*10+(n mod 10); n:=(n-(n mod 10))/10; od; m; end; P:={}; P2:={}; for i to 5000 do; if i>0 then; r:=i+reverse(i); rat:={r}; if P intersect rat = {} then P:=P union rat else P2:=P2 union rat fi; fi; od; P2;
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CROSSREFS
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Cf. A067030.
Sequence in context: A100372 A084996 A157496 * A157529 A165932 A190588
Adjacent sequences: A096765 A096766 A096767 * A096769 A096770 A096771
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KEYWORD
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base,easy,nonn
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AUTHOR
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Chuck Seggelin (seqfan(AT)plastereddragon.com), Jul 08 2004
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STATUS
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approved
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