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A062901 Number and its reversal are both multiples of 7. 3
7, 70, 77, 161, 168, 252, 259, 343, 434, 525, 595, 616, 686, 700, 707, 770, 777, 861, 868, 952, 959, 1001, 1008, 1071, 1078, 1162, 1169, 1253, 1344, 1435, 1526, 1596, 1610, 1617, 1680, 1687, 1701, 1708, 1771, 1778, 1862, 1869, 1953, 2002, 2009 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Oren Meisner, Table of n, a(n) for n = 1..10000

EXAMPLE

168 and 861 are both multiples of 7.

MATHEMATICA

Select[7Range[300], Divisible[FromDigits[Reverse[IntegerDigits[#]]], 7]&] (* Harvey P. Dale, Oct 03 2011 *)

PROG

(ARIBAS): n := 7; stop := 2400; m := 0; while m < stop do rev := int_reverse(m); if rev mod n = 0 then write(m, " "); end; inc( m, n); end;

(PARI) isok(n) = !(n%7) && !(fromdigits(Vecrev(digits(n))) % 7); \\ Michel Marcus, Aug 14 2018

CROSSREFS

Sequence in context: A082797 A216994 A121027 * A204094 A061476 A136959

Adjacent sequences:  A062898 A062899 A062900 * A062902 A062903 A062904

KEYWORD

nonn,base,easy

AUTHOR

Amarnath Murthy, Jul 01 2001

EXTENSIONS

Corrected and extended by Dean Hickerson and Klaus Brockhaus, Jul 06 2001

STATUS

approved

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Last modified November 15 18:31 EST 2018. Contains 317240 sequences. (Running on oeis4.)