A058443 Numbers k such that k^2 contains only digits {0,4,9}, not ending with zero.

2, 3, 7, 97, 212, 997, 3148, 9997, 20102, 99997, 999997, 2001002, 3074003, 9999997, 99999997, 200010002, 999999997, 9999999997, 20000100002, 99999999997, 953671853653, 999999999997, 2000001000002, 2118984413357, 2121179131852

Offset

1,1

Links

Zhao Hui Du, Table of n, a(n) for n = 1..54

P. De Geest, Index to related sequences

Hisanori Mishima, Sporadic tridigital solutions

Crossrefs

Cf. A058444.

Sequence in context: A062578 A062529 A308917 * A163152 A088120 A230778

Adjacent sequences: A058440 A058441 A058442 * A058444 A058445 A058446

Keyword

nonn,base

Author

Patrick De Geest, Nov 15 2000

Status

approved