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.

A078862 Smallest primes from A031924, each belonging to those different residue class of mod 210 which are listed in A078861. Arranged according to possible least positive residues mod 210.

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%I A078862 #6 Oct 15 2013 22:31:47
%S A078862 1901,433,647,23,31,3607,251,47,53,61,1117,73,83,727,941,733,947,331,
%T A078862 131,557,353,151,157,373,167,173,601,607,3761,1033
%N A078862 Smallest primes from A031924, each belonging to those different residue class of mod 210 which are listed in A078861. Arranged according to possible least positive residues mod 210.
%e A078862 Several terms are equal to corresponding ones in A078861, while others are larger like: 1033=4.210+193, where r=193 is in A078861.
%t A078862 f[x_] := Mod[Prime[x], 210] d[x_] := Prime[x+1]-Prime[x] t=Table[0, {210}]; Do[s=f[n]; If[Equal[d[n], 6]&&s<211&&t[[s]]==0, t[[s]]=Prime[n]], {n, 1, 1000}]; t
%Y A078862 Cf. A031924, A008364, A078861, A078859-A078864.
%K A078862 fini,full,nonn
%O A078862 1,1
%A A078862 _Labos Elemer_, Dec 13 2002