A086987 A000203(A086986(n)).

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

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: A328792 A073435 A324854 * A051219 A344581 A270216

Adjacent sequences: A086984 A086985 A086986 * A086988 A086989 A086990

Keyword

nonn

Author

Jon Perry, Jul 27 2003

Status

approved