

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



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
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OFFSET

1,2


COMMENTS

Is this sequence infinite?


LINKS



EXAMPLE

1.3.7...605.607...1446..1529....8531
.2.4.598...2...839....83....7002....
Block 1Block 2Block 3etc.
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



KEYWORD

base,nonn


AUTHOR



EXTENSIONS



STATUS

approved



