A357752 a(n) is the largest perfect power < 2^n.

4, 9, 27, 49, 125, 243, 484, 1000, 2025, 3969, 8100, 16129, 32761, 65025, 131044, 261121, 524176, 1046529, 2096704, 4190209, 8386816, 16769025, 33547264, 67092481, 134212225, 268402689, 536848900, 1073676289, 2147395600, 4294836225, 8589767761, 17179607041, 34359441769

Offset: 3

Author

Hugo Pfoertner, Oct 12 2022

Keywords

• nonn

Comments

Are all terms > 1000 identical to A357754?

Crossrefs

Cf. A000079, A001597, A357751, A357754.

Programs

PARI

for (n=3, 35, forstep (k=2^n-1, 0, -1, if(ispower(k), print1(k,", "); break)))