A255431 Numbers n such that integers n through n+6 and their squares all lack the digit 1 in their decimal expansion.

22, 62, 82, 472, 522, 662, 822, 832, 932, 972, 2362, 2382, 2522, 2562, 2632, 2972, 4522, 4832, 4862, 4882, 4932, 4972, 5022, 5062, 5082, 5322, 5472, 6062, 6382, 6632, 6662, 6782, 6972, 7022, 7382, 7432, 7472, 7632, 8322, 8332, 8362, 8672, 8882

Offset

1,1

Comments

Integers n through n+6 are terms in A255430.

All terms are congruent to 2 mod 10.

Links

Table of n, a(n) for n=1..43.

Example

22,23,24,25,26,27,28 and their squares 484,529,576,625,676,729,784 are "one-less".

Crossrefs

Cf. A000027, A052383, A067251, A255398, A255430.

Sequence in context: A044505 A156797 A216299 * A221595 A051874 A140390

Adjacent sequences: A255428 A255429 A255430 * A255432 A255433 A255434

Keyword

nonn,base

Author

Zak Seidov, Feb 23 2015

Status

approved