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.

A075007 a(n) = floor(concatenation of n+5, n+4, n+3, n+2, n+1 and n divided by 6).

This page as a plain text file.
%I A075007 #11 Jan 11 2024 20:40:44
%S A075007 90535,109053,127572,146090,164609,183127,1851646,20185164,218685183,
%T A075007 2355201851,25235520185,26919021868,28602523552,30286025235,
%U A075007 31969526919,33653028602,35336530286,37020031969,38703533653,40387035336
%N A075007 a(n) = floor(concatenation of n+5, n+4, n+3, n+2, n+1 and n divided by 6).
%H A075007 Robert Israel, <a href="/A075007/b075007.txt">Table of n, a(n) for n = 0..10000</a>
%p A075007 f:= proc(n) local i; floor(parse(cat(seq(i,i=n+5 .. n, -1)))/6) end proc:
%p A075007 map(f, [$0..40]); # _Robert Israel_, Jan 11 2024
%t A075007 fc[n_]:=Module[{c=Reverse[n]},Floor[FromDigits[Flatten[IntegerDigits/@ c]]/ 6]]; fc/@Partition[Range[0,30],6,1] (* _Harvey P. Dale_, Nov 09 2014 *)
%Y A075007 Cf. A074991 to A075000, A075003 to A075006 and A073086 to A075010.
%K A075007 base,nonn
%O A075007 0,1
%A A075007 _Amarnath Murthy_, Sep 01 2002
%E A075007 More terms from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 18 2003