A175696 a(n) is the smallest number such that a(n)*n is an anagram of a(n) * 7.

1359, 774, 45, 3, 279, 693, 1, 315, 18, 15, 261, 18, 495, 17982, 2475, 37, 189, 3519, 249, 3861, 3393, 42, 225, 4113, 37, 22581, 234, 2826, 2385, 2439, 165, 1791, 27, 15, 24975, 17838, 1668, 2556, 15129, 1728, 146655, 198, 14928, 162081, 146952, 17829

Offset

1,1

Comments

a(4) = 3 because 4*3=12, 7*3=21 and 12 is an anagram of 21.

From Zak Seidov, Aug 13 2010: (Start)

More terms: 18324, 167004, 15369, 14625, 14751, 1556, 17217, 150975, 15402, 16281, 144036, 156852, 161379, 152703, 14985, 146907, 1557, 154707, 1480356, 1471248, 1429851, 1435428, 143783856.

Apparently a(69) = 143783856 is the last term and the sequence is fini, full. (End)

Links

Julio Alvarado, Table of n, a(n) for n = 1..69

Mathematica

f[n_] := Block[ {k = 1}, While[ Sort@ IntegerDigits[7 k] != Sort@ IntegerDigits[k*n], k++ ]; k]; Array[f, 46] (* Robert G. Wilson v, Aug 15 2010 *)

Crossrefs

Sequence in context: A125270 A316680 A252379 * A023091 A242458 A223254

Adjacent sequences: A175693 A175694 A175695 * A175697 A175698 A175699

Keyword

base,nonn,fini,full

Author

Claudio Meller, Aug 09 2010

Extensions

a(31)-a(68) from Zak Seidov, a(69) from D. S. McNeil. - Zak Seidov, Aug 13 2010

Status

approved