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A257893 Pandigital numbers reordered so that the numbers A050278(n)/2^k, where 2^k||A050278(n), appear in nondecreasing order. 5
3076521984, 3718250496, 6398410752, 1384906752, 2769813504, 2845310976, 1578369024, 1074659328, 4761059328, 9805234176, 2507931648, 1294073856, 5619843072, 6591873024, 9073852416, 9574023168, 1208549376, 1249837056, 6103498752, 1542389760, 1683947520 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

If two such numbers A050278(n_1)/2^k_1 and A050278(n_2)/2^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)/2^18=a(5)/2^19=5283.

There are 184423 such pairs.

LINKS

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

FORMULA

min(A050278(n)/2^k) = 3076521984/2^21 = 1467.

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 % 2

........while not r:

............d2, r = divmod(d2, 2)

........l.append((d2, d))

l.sort()

A257893_list = [b for a, b in l] # Chai Wah Wu, May 24 2015

CROSSREFS

Cf. A050278.

Sequence in context: A225140 A203886 A257914 * A015397 A291600 A092380

Adjacent sequences:  A257890 A257891 A257892 * A257894 A257895 A257896

KEYWORD

nonn,base,fini

AUTHOR

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

STATUS

approved

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Last modified August 8 02:45 EDT 2020. Contains 336290 sequences. (Running on oeis4.)