OFFSET
1,1
COMMENTS
A squarefree subsequence of taxicab numbers.
LINKS
David A. Corneth, Table of n, a(n) for n = 1..3057 (terms <= 10^13)
Eric Weisstein's World of Mathematics, Taxicab Number
EXAMPLE
16387189 = 5^3 + 254^3 = 197^3 + 206^3 = 7*13*31*37*157.
38253878 = 87^3 + 335^3 = 173^3 + 321^3 = 2*13*19*211*367.
44409995 = 138^3 + 347^3 = 176^3 + 339^3 = 5*7*97*103*127.
CROSSREFS
KEYWORD
nonn
AUTHOR
Massimo Kofler, Jun 19 2022
STATUS
approved