[seqfan] Numbers that are the sum of two taxicab numbers in more than one way

Andrew Weimholt andrew.weimholt at gmail.com
Mon Dec 16 12:03:45 CET 2013


The smallest number that is the sum of two taxicab numbers (A001235)
in more than one way is 485784.

439101 + 46683  = 485784
314496 + 171288 = 485784

other examples:

513000 + 4104 = 517104
515375 + 1729 = 517104

443889 + 195841 = 639730
593047 + 46683  = 639730

984067 + 46683  = 1030750
515375 + 515375 = 1030750

984067 + 110656 = 1094723
1080891 + 13832 = 1094723

Sequence starts...

485784, 517104, 639730, 1030750, 1094723, 1127152,
1210813, 1371097, 1395296, 1454355, 1547189, 1574937,
1774297, 1844920, 2102464, 2315131, 2341332, 2411955,
2517424, 2614248, 2738736, 2815155, 2848031, 2989441,
3098368, 3098520, 3508920, 3525704, 3552841, 3886272,
4124729, 4136832, 4144159, 4662441, 4721976, 4782680,
4882176, 4970413, 4980528, 4993352, 5024808, 5046165, ...

Andrew


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