|
|
A324016
|
|
N-digit substring of 81654327 taken from the left.
|
|
0
|
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
A sequence q of length k is strictly pandigital if it is a permutation of {1,2,...,k}. Consider a strictly pandigital sequence q such that Sum_{i=1..m} 10^(m - i) * q_i is a multiple of m+1 for all 1 <= m <= k. Except for 21 and 81654327, there is no such sequence for k <= 30.
|
|
LINKS
|
|
|
EXAMPLE
|
8 = 2 * 4.
81 = 3 * 27.
816 = 4 * 204.
8165 = 5 * 1633.
81654 = 6 * 13609.
816543 = 7 * 116649.
8165432 = 8 * 1020679.
81654327 = 9 * 9072703.
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,full,fini,base
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|