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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A070035 Exponents of 2 when A068496(n) is also a power of 2. 1
0, 1, 3, 4, 7, 15, 16, 18, 18, 23, 31, 32, 34, 35, 38, 39, 41, 49, 63, 64, 66, 70, 70, 74, 78, 85, 88, 97, 101, 104, 112, 127, 128, 130, 134, 134, 137, 142, 142, 143, 146, 153, 158, 173, 173, 180, 183, 198, 200, 205, 205, 228, 239, 255, 256, 258, 262, 262, 265, 270 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..60.

FORMULA

a(n)=Log[2, A068496(A070034(n))].

MATHEMATICA

Do[s=Mod[n!, 2^n]; If[IntegerQ[Log[2, s]], Print[Log[2, s]]], {n, 1, 1000}]

CROSSREFS

Cf. A000142, A000079, A068496, A070034-A070036.

Sequence in context: A073728 A132753 A132407 * A219277 A024368 A329666

Adjacent sequences:  A070032 A070033 A070034 * A070036 A070037 A070038

KEYWORD

nonn

AUTHOR

Labos Elemer, Apr 17 2002

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 2 01:17 EDT 2022. Contains 354984 sequences. (Running on oeis4.)