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Search: id:A048412
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A048412 a(n)^2 is a square whose consecutive digits differ by 1. +0
2
0, 1, 2, 3, 11, 26, 111, 1111, 11111, 111111, 1111111, 11111111, 111111111 (list; graph; listen)
OFFSET

0,3
CROSSREFS

Cf. A002477, A048411.

Sequence in context: A157161 A041811 A056851 this_sequence A002981 A075641 A104081

Adjacent sequences: A048409 A048410 A048411 this_sequence A048413 A048414 A048415

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Apr 15 1999.

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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