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A147523 a(n) = number of n-digit terms in A058369. 2
3, 8, 37, 195, 1159, 6951, 42421, 261430, 1631123, 10238173, 64536808 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

a(1)=3: 0,1,9; a(2)=8: 10,18,19,45,46,55,90,99.

CROSSREFS

A058369 Numbers n such that n and n^2 have same digit sum. A004159 Sum of digits of n^2. A007953 Digital sum (i.e. sum of digits) of n.

Sequence in context: A276939 A188327 A024039 * A123981 A123985 A219953

Adjacent sequences:  A147520 A147521 A147522 * A147524 A147525 A147526

KEYWORD

base,nonn

AUTHOR

Zak Seidov, Apr 25 2009

EXTENSIONS

a(9) from Donovan Johnson, Dec 08 2009

a(10)-a(11) from Donovan Johnson, Jul 31 2011

STATUS

approved

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Last modified December 4 08:57 EST 2021. Contains 349484 sequences. (Running on oeis4.)