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A052490 Numbers n with only one nonzero solution to "numbers that are n times sum of their digits". 4
2, 3, 5, 6, 8, 9, 11, 12, 14, 15, 17, 18, 20, 21, 23, 24, 29, 30, 32, 33, 35, 39, 41, 42, 44, 45, 50, 51, 53, 54, 56, 57, 59, 60, 66, 68, 69, 71, 72, 74, 77, 78, 80, 81, 83, 86, 87, 89, 90, 92, 93, 96, 98, 99, 101, 102, 104, 105, 108, 110, 111, 113, 114, 117, 119, 120, 122 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..67.

EXAMPLE

a(2)=3 since there is only one positive number which is three times the sum of its digits, namely 27=3*9

CROSSREFS

Cf. A003634, A052489, A003635.

Sequence in context: A045506 A007494 A258575 * A248562 A117672 A194383

Adjacent sequences:  A052487 A052488 A052489 * A052491 A052492 A052493

KEYWORD

base,nonn

AUTHOR

Henry Bottomley, Mar 16 2000

STATUS

approved

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Last modified August 10 19:52 EDT 2020. Contains 336381 sequences. (Running on oeis4.)