A101246 When this sequence is interleaved with its first differences and the resulting sequence is divided into blocks of 10 digits, each block contains 10 distinct digits. Each term is chosen to be the smallest that satisfies this property.

1, 3, 7, 605, 607, 1446, 1529, 8531, 9178, 9234, 9234, 15312, 56209, 56383, 56402, 56480, 69273, 79821, 120357, 125046, 128943, 135648, 142857, 145926, 149706, 152064, 156042, 159840, 26537980, 26537994, 26538065, 27018456, 27018495

Offset

1,2

Comments

Is this sequence infinite?

Links

Table of n, a(n) for n=1..33.

Example

1.3.7...60|5.607...14|46..1529..|..8531
.2.4.598..|.2...839..|..83....70|02....
Block 1---|Block 2---|Block 3---|etc.
After placing a(10) = 9234, digits 41 through 49 are
178569234, so digit 50 is 0 and this is the difference a(11)-a(10); therefore a(11) = 9234.

Crossrefs

Sequence in context: A153217 A120905 A062599 * A056801 A302987 A092568

Adjacent sequences: A101243 A101244 A101245 * A101247 A101248 A101249

Keyword

base,nonn

Author

Eric Angelini, Jan 23 2005

Extensions

Edited by David Wasserman, Jan 04 2006

Status

approved