A257899 Pandigital numbers reordered so that the numbers A050278(n)/3^k, where 3^k||A050278(n), are in nondecreasing order.

7246198035, 3410256897, 5361708249, 5902183746, 6820513794, 8145396207, 8269753401, 9145036728, 9537240186, 1257389406, 1359426078, 4379605281, 1742063598, 6185973240, 2081654397, 2095471863, 6472951380, 2170936485, 2304859617, 2415930786, 2419650873

Offset

1,1

Comments

If two such numbers A050278(n_1)/3^k_1 and A050278(n_2)/3^k_2 are equal, then A050278(n_1) appears earlier than A050278(n_2) iff A050278(n_1)<A050278(n_2).

There are 5985 such pairs.

Links

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

Formula

min(A050278(n)/3^k) = 7246198035/3^15 = 505

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 % 3
........while not r:
............d2, r = divmod(d2, 3)
........l.append((d2, d))
l.sort()
A257899_list = [b for a, b in l] # Chai Wah Wu, May 24 2015

Crossrefs

Cf. A050278, A257893.

Sequence in context: A095926 A198784 A104944 * A199632 A104851 A226950

Adjacent sequences: A257896 A257897 A257898 * A257900 A257901 A257902

Keyword

nonn,base,fini

Author

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

Status

approved