A061954 Numbers n such that n divides the (right) concatenation of all numbers <= n written in base 25 (most significant digit on right).

1, 3, 5, 9, 15, 21, 96, 99, 259, 1317, 2112, 52711, 72483, 124069, 633696, 651632, 2391984, 4317312, 8101536, 8344672

Offset

1,2

Comments

This sequence differs from A029518 in that all least significant zeros are removed before concatenation.

No more terms < 10^7. [Lars Blomberg, Oct 26 2011]

Links

Table of n, a(n) for n=1..20.

Index entries for related sequences

Example

See A061931 for example.

Mathematica

b = 25; c = {}; Select[Range[10^4], Divisible[FromDigits[c = Join[c, IntegerDigits[IntegerReverse[#, b], b]], b], #] &] (* Robert Price, Mar 08 2020 *)

Crossrefs

Cf. A029447-A029470, A029471-A029494, A029495-A029518, A029519-A029542, A061931-A061954, A061955-A061978.

Sequence in context: A161388 A229552 A029518 * A095039 A022940 A025207

Adjacent sequences: A061951 A061952 A061953 * A061955 A061956 A061957

Keyword

nonn,base,more

Author

Larry Reeves (larryr(AT)acm.org), May 24 2001

Extensions

Edited and updated by Larry Reeves (larryr(AT)acm.org), Apr 12 2002

a(15)-a(20) from Lars Blomberg, Oct 26 2011

Status

approved