login
A354955
Perfect powers j^k, such that k is the exponent of 2 in the factorization of j^k.
1
4, 8, 16, 32, 36, 64, 100, 128, 196, 216, 256, 324, 484, 512, 676, 900, 1000, 1024, 1156, 1296, 1444, 1764, 2048, 2116, 2500, 2744, 2916, 3364, 3844, 4096, 4356, 4900, 5476, 5832, 6084, 6724, 7396, 7776, 8100, 8192, 8836, 9604, 10000, 10404, 10648, 11236, 12100
OFFSET
1,1
FORMULA
a(n) = 4 * A354956(n).
PROG
(PARI) for(k=1, 15000, my(i=ispower(k)); if(i&&valuation(k, 2)==i, print1(k, ", ")))
CROSSREFS
KEYWORD
nonn
AUTHOR
Hugo Pfoertner, Jun 13 2022
STATUS
approved