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.

A178810 Largest possible number of consecutive integers with the same prime signature as A025487(n).

This page as a plain text file.
%I A178810 #24 Dec 02 2023 01:36:27
%S A178810 1,2,1,3,1,5,1,3,3,1,1,3,7,1
%N A178810 Largest possible number of consecutive integers with the same prime signature as A025487(n).
%C A178810 The corresponding smallest integers that begin these largest runs of consecutive integers are in A178811. - _Bernard Schott_, Feb 16 2021
%C A178810 a(16) = 3 (see A178811). - _Jon E. Schoenfield_, Dec 02 2023
%H A178810 Diophante, <a href="http://www.diophante.fr/problemes-par-themes/arithmetique-et-algebre/a1-pot-pourri/2911-a1845-les-squelettes">A1845, Les squelettes</a> (in French).
%e A178810 A025487(2) = 2, prime signature {1}. There are a maximum of 2 consecutive integers with that prime signature: 2 and 3.
%e A178810 A025487(4) = 6, prime signature {1,1}. There are a maximum of 3 consecutive integers with that prime signature (e.g., 33, 34 and 35).
%e A178810 A025487(6) = 12, prime signature {1,2}. There are a maximum of 5 consecutive integers with that prime signature (e.g., 10093613546512321, 10093613546512322, 10093613546512323, 10093613546512324, and 10093613546512325). Compare A141621.
%e A178810 A025487(13) = 60, prime signature {1,1,2}. There are a maximum of 7 possible consecutive integers, between two multiples of 8, with that prime signature; the smallest such run starts at 932537185321. - _Bernard Schott_, Feb 16 2021
%Y A178810 Cf. A025487, A141621, A178811.
%K A178810 more,nonn
%O A178810 1,2
%A A178810 _Will Nicholes_, Jun 16 2010
%E A178810 Minor edits by _Ray Chandler_, Jul 29 2010
%E A178810 a(6) corrected by _Bobby Jacobs_, Sep 25 2016
%E A178810 a(12)-a(14) from _Bernard Schott_, Feb 16 2021