login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual appeal: Please make a donation to keep the OEIS running! Over 6000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A088155 Value of n-th digit in hexadecimal representation of n^n. 7
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 8, 10, 6, 14, 15, 8, 2, 0, 0, 13, 11, 5, 8, 6, 0, 12, 6, 0, 12, 1, 11, 2, 4, 11, 11, 3, 15, 8, 4, 10, 1, 14, 1, 14, 0, 6, 0, 5, 14, 12, 9, 9, 1, 4, 2, 1, 0, 10, 7, 15, 4, 10, 15, 3, 13, 1, 12, 7, 15, 14, 4, 7, 1, 14, 8, 5, 8, 4, 9, 9, 13, 6 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,18

COMMENTS

a(n)=d(n) with n^n = Sum(d(k)*16^k: 0<=d(k)<16, k>=0).

LINKS

Table of n, a(n) for n=0..89.

Eric Weisstein's World of Mathematics, Hexadecimal

FORMULA

a(n) = floor(n^n / 16^n) mod 16.

EXAMPLE

n=20, 20^20=1048576*10^20 -> [56BC75E2D6310000000000], a(20)=6.

a(0)=1, a(k)=0 for 0<k<16 and a(16)=1.

CROSSREFS

Cf. A000312, A088150, A088151, A088152, A088153, A088154, A088156, A088157.

Sequence in context: A111134 A036898 A053372 * A005876 A139370 A152754

Adjacent sequences:  A088152 A088153 A088154 * A088156 A088157 A088158

KEYWORD

nonn,base

AUTHOR

Reinhard Zumkeller, Sep 20 2003

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy .

Last modified November 20 00:42 EST 2017. Contains 294957 sequences.