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A160133 Values k such that A001065(x)= k has more than one solution. 0
1, 6, 8, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 25, 27, 29, 31, 32, 33, 35, 37, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 53, 54, 55, 57, 59, 61, 62, 63, 64, 65, 67, 69, 71, 73, 74, 75, 76, 77, 79, 81, 83, 85, 87, 89, 90, 91, 92, 93, 95, 97, 99, 100, 101, 103, 104, 105 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Numbers k with A048138(k) >= 2. Numbers k which occur in A001065 more than once. Number 1 and numbers k = A160095(n) with A160095(n+1) - A160095(n) = 0.

LINKS

Table of n, a(n) for n=1..68.

EXAMPLE

a(3)=8 as the multiplicity of the value 8 is 2: 8 = A001065(10) = A001065(49).

PROG

(PARI) {z=105; v=vector(z); for(n=1, z^2, a=sigma(n)-n; if(0<a&&a<=z, v[a]++)); for(j=1, z, if(v[j]>1, print1(j, ", ")))} // Klaus Brockhaus, May 26 2009

CROSSREFS

Cf. A048138, A001065, A160095.

Sequence in context: A327240 A274001 A324212 * A057710 A285678 A027706

Adjacent sequences:  A160130 A160131 A160132 * A160134 A160135 A160136

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, May 02 2009

EXTENSIONS

More terms from Klaus Brockhaus, May 26 2009

STATUS

approved

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Last modified February 26 03:34 EST 2020. Contains 332273 sequences. (Running on oeis4.)