1,3

Roots of square terms of A217843. Sequence contains (but is not limited to) cubes (A000578) and triangular numbers (A000217).

Table of n, a(n) for n=1..56.

Union of A000217 and A126200.

8 is a term because 8^2 = 64 = 4^3.

10 is a term because 10^2 = 100 = 1^3 + 2^3 + 3^3 + 4^3.

Cf. A000217, A000578, A126200, A163393, A217843.

Sequence in context: A187336 A169582 A121741 * A043549 A228707 A290218

Adjacent sequences: A343406 A343407 A343408 * A343410 A343411 A343412

nonn,easy

Lamine Ngom, Apr 14 2021

approved