A145521 Take the primes raised to prime exponents, arranged in numerical order (A053810). If A053810(n) = r(n)^q(n), where r(n) and q(n) are primes, then a(n) = q(n)^r(n).

4, 9, 8, 32, 27, 25, 128, 2048, 243, 49, 8192, 125, 131072, 2187, 524288, 8388608, 536870912, 2147483648, 177147, 137438953472, 2199023255552, 8796093022208, 121, 343, 1594323, 140737488355328, 9007199254740992, 3125, 576460752303423488, 2305843009213693952, 147573952589676412928

Offset

1,1

Comments

a(n) = A053812(n)^A053811(n).

Links

Table of n, a(n) for n=1..31.

Prog

(PARI) lista(nn) = for(k=1, nn, if(isprime(isprimepower(k, &p)), print1(bigomega(k)^p, ", "))); \\ Jinyuan Wang, Feb 25 2020

Crossrefs

Cf. A053810, A053811, A053812, A145522.

Sequence in context: A297439 A168175 A164382 * A230979 A145431 A196516

Adjacent sequences: A145518 A145519 A145520 * A145522 A145523 A145524

Keyword

nonn

Author

Leroy Quet, Oct 12 2008

Extensions

Extended by Ray Chandler, Nov 01 2008

More terms from Jinyuan Wang, Feb 25 2020

Status

approved