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A053232 Numbers n for which values not equal to 2 occur in the expansion of A053230. 7
1, 2, 23, 31, 32, 38, 39, 54, 59, 67, 68, 74, 75, 84, 98, 99, 114, 128, 129, 138, 149, 157, 158, 172, 177, 197, 198, 201, 202, 228, 229, 232, 240, 241, 247, 248, 257, 262, 263, 277, 278, 281, 283, 284, 293, 307, 308, 311, 313, 314, 332, 333, 339, 340, 349, 350 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MAPLE

with(numtheory): f := [seq( `if`((sigma(i+1) > sigma(i)), i, print( )), i=1..5000)];

seq( `if`(f[i+1] - f[i] <> 2, i, print( )), i=1..100);

CROSSREFS

Cf. A000203, A053224, A053230, A053231, A053233, A053234, A053235, A053236, A053237.

Sequence in context: A045708 A090150 A106102 * A065987 A107153 A049544

Adjacent sequences:  A053229 A053230 A053231 * A053233 A053234 A053235

KEYWORD

nonn

AUTHOR

Asher Auel (asher.auel(AT)reed.edu) Jan 10, 2000

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Last modified February 15 17:46 EST 2012. Contains 205835 sequences.