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A053235
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Numbers n such that A053230(n) = 3.
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8
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158, 202, 263, 350, 387, 476, 567, 582, 701, 790, 879, 894, 926, 999, 1103, 1236, 1282, 1403, 1418, 1501, 1523, 1646, 1661, 1737, 1831, 1847, 1953, 2059, 2074, 2149, 2185, 2237, 2265, 2370, 2505, 2563, 2683, 2729, 2873, 2894, 2909, 3032, 3107, 3127
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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_Reinhard Zumkeller_, Table of n, a(n) for n = 1..10000
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MAPLE
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with(numtheory): f := [seq( `if`((sigma(i+1) > sigma(i)), i, print( )), i=1..5000)];
seq( `if`(f[i+1] - f[i] = 3, i, print( )), i=1..1000);
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PROG
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(Haskell)
import Data.List (elemIndices)
a053235 n = a053235_list !! (n-1)
a053235_list = map (+ 1) $ elemIndices 3 a053230_list
-- Reinhard Zumkeller, May 07 2012
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CROSSREFS
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Cf. A000203, A053224, A053230, A053231, A053232, A053233, A053234, A053236, A053237.
Sequence in context: A048930 A130864 A045245 * A088728 A072555 A056088
Adjacent sequences: A053232 A053233 A053234 * A053236 A053237 A053238
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KEYWORD
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nonn
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AUTHOR
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Asher Auel (asher.auel(AT)reed.edu) Jan 10, 2000
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STATUS
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approved
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