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Search: id:A067032
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| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 9, 9, 7, 1, 6, 5, 1, 4, 3, 1, 2, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 4, 5, 4, 5, 4, 5, 4, 5, 4, 5, 5, 6, 5, 6, 5, 6, 5, 6, 5, 6, 6, 7, 6, 7, 6, 7, 6, 7, 6, 7, 7, 8, 7, 8, 7, 8, 7, 8, 7, 8, 8, 9, 8
(list; graph; listen)
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OFFSET
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0,12
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EXAMPLE
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a(12) = 3 since A067030(12) = 33 and for k = 12, 21, 30 we have 33 = k + reverse(k).
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PROGRAM
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(ARIBAS): function a067032(a, b: integer); var n, k, c, i, rev: integer; st, nst: string; begin for n := a to b do k := 0; c := 0; while k <= n do st := itoa(k); nst := ""; for i := 0 to length(st) - 1 do nst := concat(st[i], nst); end; rev := atoi(nst); if n = k + rev then inc(c); end; inc(k); end; if c > 0 then write(c, ", "); end; end; end; a067032(0, 1000); .
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CROSSREFS
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Cf. A033865, A067030, A067031, A067033, A067034.
Sequence in context: A113018 A113009 A068064 this_sequence A052500 A047813 A084051
Adjacent sequences: A067029 A067030 A067031 this_sequence A067033 A067034 A067035
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KEYWORD
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base,easy,nonn
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AUTHOR
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Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Dec 29 2001
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