A029787 Numbers k such that k^2 and k^3 do not have any common digits.

2, 3, 8, 9, 14, 24, 28, 34, 58, 63, 67, 69, 163, 173, 437, 482, 527, 543, 612, 819, 1514, 1633, 2244, 2303, 3379, 6603, 28114, 31563

Offset

1,1

Comments

a(29), if it exists, exceeds 2*10^9. - Sean A. Irvine, Mar 04 2020

a(29), if it exists, exceeds 10^14. - Michael S. Branicky, Dec 19 2022

Links

Table of n, a(n) for n=1..28.

Prog

(PARI) isok(k) = #setintersect(Set(digits(k^2)), Set(digits(k^3))) == 0; \\ Michel Marcus, Dec 21 2022

Crossrefs

Cf. A029788, A029789, A359105.

Sequence in context: A277094 A099148 A309423 * A246396 A054462 A101471

Adjacent sequences: A029784 A029785 A029786 * A029788 A029789 A029790

Keyword

nonn,base,more

Author

Patrick De Geest

Status

approved