A344283 Column 2 of A317721.

3, 3, 307, 307, 11, 3, 23, 3, 3, 467, 3, 467, 467, 37, 2, 5, 31, 3, 127, 127, 127, 127, 127, 1667, 73, 19, 19, 19, 19, 19, 31, 31, 19, 31, 19, 19, 31, 31, 31, 31, 31, 31, 19, 31, 3, 3, 31, 31, 3, 3, 3, 3, 19, 19, 31, 31, 73, 73, 3, 3, 3, 3, 3, 3, 3, 19, 19, 31

Offset

1,1

Links

Table of n, a(n) for n=1..68.

Prog

(PARI) addtovec(vec) = my(w=[], vmax=0); for(t=1, #vec, if(vecmax(vec[t]) > vmax, vmax=vecmax(vec[t]))); for(k=1, #vec, forprime(q=1, vmax, if(Mod(vec[k][#vec[k]], q^2)^(q-1)==1, w=concat(w, [0]); w[#w]=concat(vec[k], [q])))); w
removefromvec(vec) = my(w=[]); for(k=1, #vec, if(vecsort(vec[k])==vecsort(vec[k], , 8), w=concat(w, [0]); w[#w]=vec[k])); w
printfromvec(vec) = for(k=1, #vec, if(vec[k][1]==vec[k][#vec[k]], print1(vec[k][2], ", ")))
forprime(p=1, , my(v=[[p]]); while(#v > 0, v=addtovec(v); printfromvec(v); v=removefromvec(v)))

Crossrefs

Cf. A317721, A344282 (column 1).

Sequence in context: A113466 A007301 A009715 * A335258 A292163 A242886

Adjacent sequences: A344280 A344281 A344282 * A344284 A344285 A344286

Keyword

nonn

Author

Felix Fröhlich, May 14 2021

Status

approved