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A227767 First n-fold perfect number divided by 30240, or 0 if the quotient is not an integer. 6
0, 0, 0, 1, 468996, 5104019711831040, 4672979429478781357799252736061029208476969074688000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

COMMENTS

The first n-fold perfect numbers are A007539(n) = 1, 6, 120, 30240, 14182439040, ..., for n = 1, 2, 3, 4, 5, ...

For additional comments, references, links, and cross-refs, see A007539 and A227765.

LINKS

T. D. Noe, Table of n, a(n) for n = 1..8

FORMULA

a(n) = A007539(n)/30240 if 4 <= n <= 8.

EXAMPLE

The first 5-fold perfect number is A007539(5) = 14182439040, so a(5) = 14182439040/30240 = 468996.

CROSSREFS

Cf. A007539, A227765, A227766, A227768, A227769.

Sequence in context: A341152 A096889 A206205 * A328255 A092010 A206541

Adjacent sequences:  A227764 A227765 A227766 * A227768 A227769 A227770

KEYWORD

nonn

AUTHOR

Jonathan Sondow, Jul 29 2013

STATUS

approved

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Last modified June 17 00:17 EDT 2021. Contains 345080 sequences. (Running on oeis4.)