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A086987 A000203(A086986(n)). 1
4, 7, 8, 15, 13, 18, 28, 14, 31, 18, 20, 42, 32, 36, 60, 31, 42, 40, 56, 30, 72, 32, 48, 54, 48, 91, 38, 60, 56, 90, 42, 96, 84, 78, 72, 48, 124, 57, 93, 72, 98, 54, 120, 72, 120, 90, 60, 168, 62, 96, 104, 84, 144, 68, 126, 96, 144, 72, 74, 124, 140, 96, 168, 121, 126, 84 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

EXAMPLE

62 is in the list because sigma(61)=62=sigma(13)+sigma(14)+sigma(15)=14+24+24

PROG

(PARI) { s=vector(1000); sc=0; for (k=1, 10, for (i=1, 100, s[sc++ ]=sum(j=0, k, sigma(i+j)))); s=vecsort(s); s } for (i=2, 100, for (j=1, 1000, if (sigma(i)==s[j], print1(sigma(i)", "); break)))

CROSSREFS

Cf. A086986 gives n.

Sequence in context: A291402 A073435 A324854 * A051219 A270216 A237599

Adjacent sequences:  A086984 A086985 A086986 * A086988 A086989 A086990

KEYWORD

nonn

AUTHOR

Jon Perry, Jul 27 2003

STATUS

approved

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Last modified March 20 07:42 EDT 2019. Contains 321345 sequences. (Running on oeis4.)