A068888 Squares with property that digits alternate in parity individually as well as in concatenation with previous terms.

1, 4, 9, 25, 49, 81, 256, 361, 676, 729, 4761, 6561, 41616, 56169, 69696, 72361, 87616, 96721, 212521, 214369, 290521, 436921, 452929, 458329, 474721, 670761, 690561, 2143296, 3470769, 4145296, 5230369, 8503056, 9078169, 21058921, 21836929, 21874329, 25230529

Offset

0,2

Links

Table of n, a(n) for n=0..36.

Crossrefs

Cf. A030152.

Sequence in context: A130283 A065739 A053704 * A277900 A344701 A182988

Adjacent sequences: A068885 A068886 A068887 * A068889 A068890 A068891

Keyword

base,nonn

Author

Amarnath Murthy, Mar 20 2002

Extensions

Missing 81 and 452929 inserted, incorrect 93636 removed, and more terms from Sean A. Irvine, Mar 22 2024

Status

approved