A160946 Numbers n that are multiples of the reversal of n+1.

9, 99, 741, 979, 999, 9499, 9999, 99999, 319999, 749509, 771999, 999999, 1240099, 3522999, 3794109, 7099999, 7425741, 9801979, 9998899, 9999999, 10870209, 19789119, 30099999, 73378209, 75199999, 99999999, 326599999, 726199999, 728739999, 783742161, 969999999

Offset

1,1

Comments

For n>0, 10^n-1 is a term (that is, A002283 except 0). - Michel Marcus, Nov 25 2014

Links

Table of n, a(n) for n=1..31.

Ana Rechtman, Septembre 2019, 3e défi, Images des Mathématiques, CNRS, 2019 (in French).

Example

741 = 3 * 247 = 3 * R(742) = 3 * R(741+1).

Prog

(PARI) isok(n) = ! (n % subst(Polrev(digits(n+1)), x, 10)); \\ Michel Marcus, Nov 24 2014

Crossrefs

Sequence in context: A116274 A116286 A306449 * A359078 A100681 A043044

Adjacent sequences: A160943 A160944 A160945 * A160947 A160948 A160949

Keyword

nonn,base

Author

Claudio Meller, May 30 2009

Extensions

More terms from Claudio Meller, Jun 19 2009

a(24)-a(31) from Paolo P. Lava, Nov 24 2014

Status

approved