The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A171613

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A171613

a(n) = n^2 + sum of the digits of n^2.
(history; published version)

#4 by Bruno Berselli at Tue Oct 15 10:34:39 EDT 2013

STATUS

editing

approved

#3 by Bruno Berselli at Tue Oct 15 10:34:27 EDT 2013

COMMENTS

Subsequence of A062028 a(n) = n + sum of the digits of n).

STATUS

approved

editing

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

AUTHOR

_Zak Seidov (zakseidov(AT)yahoo.com), _, Dec 13 2009

Discussion

Fri Mar 30

17:26

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

#1 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010

NAME

a(n) = n^2 + sum of the digits of n^2.

DATA

0, 2, 8, 18, 23, 32, 45, 62, 74, 90, 101, 125, 153, 185, 212, 234, 269, 308, 333, 371, 404, 450, 500, 545, 594, 638, 695, 747, 803, 854, 909, 977, 1031, 1107, 1169, 1235, 1314, 1388, 1457, 1530, 1607, 1697, 1782, 1871, 1955, 2034, 2126, 2222, 2313, 2408, 2507

OFFSET

0,2

COMMENTS

Subsequence of A062028 a(n) = n + sum of the digits of n

MATHEMATICA

Table[n^2+Total[IntegerDigits[n^2]], {n, 0, 100}]

CROSSREFS

Cf. A062028, A171614, A171615.

KEYWORD

base,nonn

AUTHOR

Zak Seidov (zakseidov(AT)yahoo.com), Dec 13 2009

STATUS

approved