cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A210582 Numbers whose first digit is the remainder of their division by the last digit (in base 10).

This page as a plain text file.
%I A210582 #32 Sep 08 2022 08:46:01
%S A210582 13,19,23,26,29,39,46,49,59,69,79,89,103,109,127,133,163,193,197,199,
%T A210582 203,206,209,214,218,233,234,236,247,254,258,263,266,274,293,294,296,
%U A210582 298,299,309,367,399,406,409,417,428,436,466,468,487,496,499,509,537,599,609,638,657,678,699,709,799,809,899
%N A210582 Numbers whose first digit is the remainder of their division by the last digit (in base 10).
%C A210582 This is a restricted or simplified version of the definition of modest numbers A054986.
%H A210582 Reinhard Zumkeller, <a href="/A210582/b210582.txt">Table of n, a(n) for n = 1..10000</a>
%H A210582 E. Angelini, <a href="http://www.cetteadressecomportecinquantesignes.com/NotModest.htm">Not Modest</a>, Mar 22 2012
%H A210582 E. Angelini, <a href="/A210582/a210582.pdf">Not modest</a> [Cached copy, with permission]
%F A210582 a(n) mod A010879(a(n)) = A000030(a(n)). [_Reinhard Zumkeller_, Mar 26 2011]
%o A210582 (PARI) is_nm( x )=x%10 && x%(x%10)==x\10^(#Str(x)-1)
%o A210582 for(n=1,999,is_nm(n)&print1(n","))
%o A210582 (Haskell)
%o A210582 a210582 n = a210582_list !! (n-1)
%o A210582 a210582_list = filter (\x -> mod x (a010879 x) == a000030 x) a067251_list
%o A210582 -- _Reinhard Zumkeller_, Mar 26 2012
%o A210582 (Magma) [ n: n in [1..1002] | not IsZero(d[1]) and n mod d[1] eq d[#d] where d is Intseq(n) ];  // _Bruno Berselli_, Mar 26 2012
%Y A210582 Cf. A054986, A178158.
%Y A210582 A subsequence of A067251, disjoint with A034709.
%K A210582 nonn,base
%O A210582 1,1
%A A210582 _Eric Angelini_ and _M. F. Hasler_, Mar 22 2012
%E A210582 Edited by _M. F. Hasler_, Jan 14 2014