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A378051

Numbers k such that the least m for which m*k is a ludic number (if such an m exists) sets a new record.

1, 19, 49, 59, 365, 695, 1055, 1171, 1655, 2945, 5767, 12085, 12715, 68585

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Indices of records in A377778.

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

49 is a term since 931 = 19*49 is the smallest multiple of 49 that is a ludic number and, for all k < 49, either no multiple of k is a ludic number or m*k is a ludic number for some m < 19.

CROSSREFS

Cf. A003309, A377778, A378049, A378052.

Sequence in context: A165672 A136686 A130413 * A156376 A063306 A267572

Adjacent sequences: A378048 A378049 A378050 * A378052 A378053 A378054

KEYWORD

nonn,more

AUTHOR

Pontus von Brömssen, Nov 15 2024

STATUS

approved

URL: https://oeis.org/A378051

⇱ A378051 - OEIS