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A276144 Solutions y to x/SOD(x) = y, where x and y are palindromes. 3
1, 1, 1, 1, 1, 1, 1, 1, 1, 7777, 77077, 122221, 707707, 770077, 7070707, 7700077, 4444444, 88888888, 70077007, 70700707, 77000077, 88888888, 88888888, 888808888, 488888884, 700707007, 707000707, 404444404, 770000077, 440444044, 444040444, 848888848, 884888488 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,10

COMMENTS

"SOD" = "sum of digits" (A007953).

LINKS

Lars Blomberg, Table of n, a(n) for n = 1..10000

C. Rivera, PrimePuzzles.Net, Puzzle 41.- Palindromic Carnival, section B.

EXAMPLE

279972/SOD(279972) = 279972/36 = 7777, so 7777 is a term.

CROSSREFS

See A276142 for the x values.

See A276143 for the SOD(x) values.

Cf. A002113, A005349, A007953.

Sequence in context: A223361 A222339 A043520 * A234032 A290339 A234460

Adjacent sequences:  A276141 A276142 A276143 * A276145 A276146 A276147

KEYWORD

nonn,base

AUTHOR

Lars Blomberg, Aug 22 2016

STATUS

approved

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Last modified August 3 06:43 EDT 2021. Contains 346435 sequences. (Running on oeis4.)