OFFSET
1,3
COMMENTS
Generated with DrScheme.
Comparison of b-files indicates that the first difference from A136831 is at the 1262nd entry. - R. J. Mathar Apr 29 2008
More precisely, A278038(18) = 10101, A136827(294) = 10110001101 resp. A136808(1262) = A136831(1262) = 101100000000000 are the first terms from where on these four sequences differ from the present one; a(1262) = 101090009991101 is also the first term containing a digit > 1. - M. F. Hasler, Nov 15 2017
LINKS
Jonathan Wellons, Table of n, a(n) for n = 1..1360
J. Wellons, Tables of Shared Digits [archived]
EXAMPLE
101090009991101^2 = 10219190120000900002099192201.
MATHEMATICA
With[{c={0, 1, 2, 9}}, Select[FromDigits/@Tuples[c, 7], SubsetQ[c, IntegerDigits[#^2]]&]] (* Harvey P. Dale, Feb 11 2024 *)
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Jonathan Wellons (wellons(AT)gmail.com), Jan 22 2008
STATUS
approved