A116628 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

A116628

Positions where A116624 is a power of 2.

1, 2, 3, 4, 7, 11, 26, 42, 109, 166, 373, 772, 1532, 2930, 6154, 10933, 24184, 44069, 105575, 155528, 374727, 681122, 1630332, 3077586, 6523332

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

OFFSET

1,2

COMMENTS

Conjecture: all the powers of 2 occur in A116624 (implying that none occur in A116625) and they occur in ascending order, in which case A116624(a(n)) = A000079(n-1). Checked up to n=16.

LINKS

Table of n, a(n) for n=1..25.

Rémy Sigrist, C program

PROG

CROSSREFS

Cf. A000079, A116624, A116625.

Sequence in context: A107481 A058521 A372266 * A140463 A223578 A073147

Adjacent sequences: A116625 A116626 A116627 * A116629 A116630 A116631

KEYWORD

nonn,more

AUTHOR

Paul D. Hanna and Antti Karttunen, Feb 21 2006

EXTENSIONS

a(17)-a(25) from Rémy Sigrist, Feb 14 2023

STATUS

approved