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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A282134 First differences of A045876. 1
1, 1, 1, 1, 1, 1, 1, 1, 2, 0, 22, 11, 11, 11, 11, 11, 11, 11, -88, 11, -11, 33, 11, 11, 11, 11, 11, 11, -88, 11, 11, -22, 44, 11, 11, 11, 11, 11, -88, 11, 11, 11, -33, 55, 11, 11, 11, 11, -88, 11, 11, 11, 11, -44, 66, 11, 11, 11, -88, 11, 11, 11, 11, 11, -55, 77, 11, 11, -88, 11, 11, 11, 11, 11, 11, -66, 88, 11, -88, 11 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,9

COMMENTS

See also scatterplot of this sequence.

LINKS

Altug Alkan, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A045876(n+1) - A045876(n).

EXAMPLE

a(11) = 22 because A045876(12) - A045876(11) = (12 + 21) - 11 = 22.

MATHEMATICA

Differences@ Table[Total[FromDigits /@ Permutations@ IntegerDigits@ n], {n, 81}] (* Michael De Vlieger, Feb 07 2017, after T. D. Noe at A045876 *)

PROG

(PARI) A045876(n) = {my(d=digits(n), q=1, v, t=1); v = vecsort(d); for(i=1, #v-1, if(v[i]==v[i+1], t++, q*=binomial(i, t); t=1)); q*binomial(#v, t)*(10^#d-1)*vecsum(d)/9/#d}

a(n) = A045876(n+1) - A045876(n);

CROSSREFS

Cf. A045876.

Sequence in context: A290465 A256303 A156438 * A293938 A254042 A009378

Adjacent sequences:  A282131 A282132 A282133 * A282135 A282136 A282137

KEYWORD

base,easy,sign

AUTHOR

Altug Alkan, Feb 06 2017

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 February 20 02:07 EST 2018. Contains 299357 sequences. (Running on oeis4.)