The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A077253

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Showing entries 1-10 | older changes

A077253

Sum of digits squared plus sum of digits of n.
(history; published version)

#11 by Charles R Greathouse IV at Sat Nov 26 23:57:51 EST 2016

STATUS

editing

approved

#10 by Charles R Greathouse IV at Sat Nov 26 23:57:49 EST 2016

PROG

(PARI) a(n)=my(d=digits(n)); sum(i=1, #d, d[i]^2)+sumdigits(n) \\ Charles R Greathouse IV, Nov 26 2016

STATUS

approved

editing

#9 by Charles R Greathouse IV at Fri Aug 02 11:00:47 EDT 2013

STATUS

proposed

approved

#8 by Vincenzo Librandi at Fri Aug 02 08:21:03 EDT 2013

STATUS

editing

proposed

#7 by Vincenzo Librandi at Fri Aug 02 08:20:52 EDT 2013

LINKS

Vincenzo Librandi, <a href="/A077253/b077253.txt">Table of n, a(n) for n = 1..1000</a>

KEYWORD

nonn,base,easy

STATUS

approved

editing

#6 by Harvey P. Dale at Sun Aug 12 12:00:58 EDT 2012

STATUS

editing

approved

#5 by Harvey P. Dale at Sun Aug 12 12:00:51 EDT 2012

MATHEMATICA

sd[n_]:=Module[{idn=IntegerDigits[n]}, Total[idn+idn^2]]; Array[sd, 80] (* Harvey P. Dale, Aug 12 2012 *)

STATUS

approved

editing

#4 by Russ Cox at Fri Mar 30 17:26:08 EDT 2012

AUTHOR

_Zak Seidov (zakseidov(AT)yahoo.com), _, Nov 01 2002

Discussion

Fri Mar 30

17:26

OEIS Server: https://oeis.org/edit/global/139

#3 by N. J. A. Sloane at Fri Sep 29 03:00:00 EDT 2006

KEYWORD

nonn,base,new

AUTHOR

Zakir F. Zak Seidov (zakseidov(AT)yahoo.com), Nov 01 2002

#2 by N. J. A. Sloane at Sun Feb 20 03:00:00 EST 2005

KEYWORD

nonn,base,new

AUTHOR

Zakir F. Seidov (zfseidovzakseidov(AT)ycariel.yosh.acyahoo.ilcom), Nov 01 2002