A273877 Least positive integer k such that k^3 + (k+1)^3 + ... + (k+n-2)^3 + (k+n-1)^3 is the sum of two positive cubes. a(n) = 0 if no solution exists.

0, 1, 11, 2, 10, 31, 6, 70, 4, 42, 4, 4, 15, 174, 6, 2, 70, 556, 18, 378, 2, 119, 4277, 6, 8, 5, 33111, 3, 2088, 61, 7, 7, 145, 417, 8, 13, 9, 1424, 23, 18, 106, 101, 7, 39, 138, 276, 13353, 48, 1, 31, 645, 2981, 107627, 34, 155, 11, 8, 214, 62, 25, 103, 28

Offset: 1

Author

Altug Alkan, Jun 02 2016

Keywords

• nonn

Comments

What is the most repeated value of this sequence?

Examples

			a(3) = 11 because 11^3 + 12^3 + 13^3 = 7^3 + 17^3.
		

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..200

Crossrefs

Cf. A003325, A217843.

Extensions

a(10)-a(62) from Giovanni Resta, Jun 03 2016

a(49) corrected by Chai Wah Wu, Jun 07 2016