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A053244 Numbers n such that A053238(n) = 4. 7
5, 29, 34, 65, 70, 94, 99, 123, 198, 227, 239, 244, 274, 280, 304, 310, 327, 332, 362, 373, 391, 402, 421, 452, 481, 492, 510, 539, 601, 612, 636, 654, 659, 719, 749, 761, 811, 816, 821, 832, 899, 904, 927, 958, 1033, 1050, 1081, 1110, 1115, 1139, 1201 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

MAPLE

with(numtheory): f := [seq( `if`((sigma(i) > sigma(i+1)), i, print( )), i=1..8000)];

seq( `if`(f[i+1] - f[i] = 4, i, print( )), i=1..3000);

CROSSREFS

Cf. A000203, A053226, A053238, A053239, A053240, A053241, A053242, A053243, A053245.

Sequence in context: A043062 A321701 A243012 * A096696 A115279 A279393

Adjacent sequences:  A053241 A053242 A053243 * A053245 A053246 A053247

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified April 5 12:34 EDT 2020. Contains 333241 sequences. (Running on oeis4.)