A257901 Pandigital numbers reordered so that the numbers A050278(n)/5^k, where 5^k||A050278(n), are in nondecreasing order.

1304296875, 1342968750, 1437890625, 1824609375, 9123046875, 1923046875, 3104296875, 3142968750, 3649218750, 4137890625, 4862109375, 1034296875, 1269843750, 6349218750, 1284609375, 1293046875, 1347890625, 1432968750, 8124609375, 1629843750, 8462109375

Offset

1,1

Comments

If two such numbers A050278(n_1)/5^k_1 and A050278(n_2)/5^k_2 are equal, then A050278(n_1) appears earlier than A050278(n_2) iff A050278(n_1)<A050278(n_2). For example, a(4)/5^8=a(5)/5^9=4671.

There are 46080 such pairs.

Links

Chai Wah Wu, Table of n, a(n) for n = 1..1000

Formula

min(A050278(n)/5^k) = 1304296875/5^8 = 3339.

Prog

(Python)
from itertools import permutations
l = []
for d in permutations('0123456789', 10):
....if d[0] != '0':
........d2 = int(''.join(d))
........d = d2
........r = d2 % 5
........while not r:
............d2, r = divmod(d2, 5)
........l.append((d2, d))
l.sort()
A257901_list = [b for a, b in l] # Chai Wah Wu, May 24 2015

Crossrefs

Cf. A050278, A257893, A257899.

Sequence in context: A113641 A186909 A288089 * A338455 A202723 A230795

Adjacent sequences: A257898 A257899 A257900 * A257902 A257903 A257904

Keyword

nonn,base,fini

Author

Vladimir Shevelev and Peter J. C. Moses, May 12 2015

Status

approved