A364727 - OEIS

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A364727

Numbers k such that k and k+1 are both admirable numbers (A111592).

1

29691198404, 478012798575, 2789405835075, 22929723392715

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

OFFSET

1,1

COMMENTS

a(1)-a(2) were found by Giovanni Resta.

LINKS

Table of n, a(n) for n=1..4.

Giovanni Resta, admirable numbers, Numbers Aplenty.

CROSSREFS

Subsequence of A096399 and A111592.

Cf. A109729, A109730.

Sequence in context: A252839 A307760 A216017 * A172852 A172694 A290503

Adjacent sequences: A364724 A364725 A364726 * A364728 A364729 A364730

KEYWORD

nonn,hard,more

AUTHOR

Amiram Eldar, Aug 05 2023

EXTENSIONS

a(4) from Martin Ehrenstein, Aug 06 2023

STATUS

approved