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A089561
Concatenations arising in A089560.
1
1, 31, 431, 5431, 75431, 1475431, 91475431, 691475431, 57691475431, 1357691475431, 181357691475431, 17181357691475431, 1617181357691475431, 121617181357691475431, 20121617181357691475431
OFFSET
1,2
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Ray Chandler, Nov 22 2003
STATUS
approved