A133977
Home primes whose homeliness is greater than 11.
Original entry on oeis.org
378997, 747521, 777643, 2333797, 2337397, 2337691, 3127979, 3127997, 3136607, 3173761, 3373547, 3373907, 3374729, 3377999, 3378317, 3379829, 3574657, 3639997, 3733967, 3746507, 3759263, 3774161, 3777419, 3784463, 3789293
Offset: 1
Cf.
A037274,
A118756,
A133957,
A133959,
A133961,
A133963,
A133965,
A133967,
A133969,
A133971,
A133973,
A133975,
A133979.
-
lst = {}; f[n_] := FromDigits@ Flatten[ IntegerDigits@ Table[ #[[1]], {#[[2]]}] & /@ FactorInteger@n, 2]; h[n_] := NestWhileList[f@# &, n, !PrimeQ@# &, 1, 28]; Do[p = h[n][[ -1]]; If[ PrimeQ@p && p < 10^7 && p != n, Print[{n, p}]; AppendTo[lst, p]], {n, 2, 1000}];
d = 12 - 2; lsu = {}; Do[ If[ lst[[n]] == lst[[n + d]], AppendTo[ lsu, lst[[n]] ]], {n, 188004 - d - 1}]; Take[ Union@ lsu, 30]
A133979
Home primes whose homeliness is greater than 12.
Original entry on oeis.org
747521, 2333797, 2337397, 2337691, 3373547, 3373907, 3378317, 3379829, 3574657, 3639997, 3733967, 3746507, 3777419, 3784463, 3789293, 3791423, 3795569, 3798923, 4389883, 7548461
Offset: 1
Cf.
A037274,
A118756,
A133957,
A133959,
A133961,
A133963,
A133965,
A133967,
A133969,
A133971,
A133973,
A133975,
A133977.
-
lst = {}; f[n_] := FromDigits@ Flatten[ IntegerDigits@ Table[ #[[1]], {#[[2]]}] & /@ FactorInteger@n, 2]; h[n_] := NestWhileList[f@# &, n, !PrimeQ@# &, 1, 28]; Do[p = h[n][[ -1]]; If[ PrimeQ@p && p < 10^7 && p != n, Print[{n, p}]; AppendTo[lst, p]], {n, 2, 1000}];
d = 13 - 2; lsu = {}; Do[ If[ lst[[n]] == lst[[n + d]], AppendTo[ lsu, lst[[n]] ]], {n, 188004 - d - 1}]; Union@ lsu
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