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!)
A059734 Carryless 11^n base 10; a(n) is carryless sum of 10*a(n-1) and a(n-1). 2

%I #16 Mar 10 2023 09:07:51

%S 1,11,121,1331,14641,150051,1650561,17155171,188606881,1964664691,

%T 10500200501,115502205511,1260524250621,13865766756831,

%U 141412323214141,1555535555355551,16000880008800061,176008680086800671

%N Carryless 11^n base 10; a(n) is carryless sum of 10*a(n-1) and a(n-1).

%H Seiichi Manyama, <a href="/A059734/b059734.txt">Table of n, a(n) for n = 0..999</a>

%H David Applegate, Marc LeBrun and N. J. A. Sloane, <a href="http://neilsloane.com/doc/carry1.pdf">Carryless Arithmetic (I): The Mod 10 Version</a>

%F a(n)=Sum[Mod[Binomial[n, m], 10]*10^m, {m, 0, n}]. - _Roger L. Bagula_ and _Gary W. Adamson_, Sep 14 2008

%e a(7)=17155171 since a(6)=1650561 and digits of a(7) are sum mod 10 of 1, 6+1=7, 5+6=1, 0+5=5, 5+0=5, 6+5=1, 1+6=7 and 1.

%t Table[Sum[Mod[Binomial[n, m], 10]*10^m, {m, 0, n}], {n, 0, 30}] - _Roger L. Bagula_ and _Gary W. Adamson_, Sep 14 2008

%o (PARI) a(n) = fromdigits(Vec(Pol(digits(11))^n)%10); \\ _Seiichi Manyama_, Mar 10 2023

%Y Cf. A004520, A006940, A008975, A361351.

%K base,nonn

%O 0,2

%A _Henry Bottomley_, Feb 20 2001

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 May 3 21:39 EDT 2024. Contains 372225 sequences. (Running on oeis4.)