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A355095
Taxicab numbers (sums of 2 cubes in more than 1 way) which are products of five distinct primes.
1
16387189, 16776487, 17045567, 24767171, 38253878, 39639691, 40183262, 41892515, 44409995, 51278929, 60271939, 73842713, 106496767, 122810129, 129380329, 145908847, 154245637, 156234169, 176427433, 197842337, 243578881, 271688534, 272264167, 292940137, 300694303, 373333697, 389675503, 401947273
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
Intersection of A001235 and A046387.
Sequence in context: A253716 A216004 A155949 * A192203 A248204 A365812
KEYWORD
nonn
AUTHOR
Massimo Kofler, Jun 19 2022
STATUS
approved