A243536 Numbers n such that list of divisors of n contains 3 distinct digits (in base 10).

4, 9, 15, 23, 25, 29, 37, 39, 43, 44, 47, 53, 59, 67, 73, 79, 83, 89, 93, 95, 97, 99, 103, 107, 109, 111, 119, 122, 125, 127, 137, 139, 143, 149, 155, 157, 163, 167, 173, 179, 187, 193, 197, 202, 223, 227, 229, 233, 241, 242, 251, 271, 277, 281, 303, 317, 337

Offset

1,1

Comments

Numbers n such that A037278(n), A176558(n) and A243360(n) contain 3 distinct digits.

Links

David A. Corneth, Table of n, a(n) for n = 1..10000

Example

44 is in sequence because list of divisors of 44: (1, 2, 4, 11, 22, 44) contains 3 distinct digits (1, 2, 4).

Prog

(Excel) [Row n = 1 …10000; Column A: A(n) = A095048(n); Column B: B(n) = IF(A(n)=3; A(n)); Arrangement of column B]

Crossrefs

Cf. A095048, A037278, A176558, A243360.

Sequences of numbers n such that list of divisors of n contains k distinct digits for 1 <= k <= 10: k = 1: A243534; k = 2: A243535; k = 3: A243536; k = 4: A243537; k = 5: A243538; k = 6: A243539; k = 7: A243540; k = 8: A243541; k = 9: A243542; k = 10: A095050.

Cf. A243543 (the smallest number m whose list of divisors contains n distinct digits).

Sequence in context: A281026 A079423 A285283 * A184005 A194106 A004629

Adjacent sequences: A243533 A243534 A243535 * A243537 A243538 A243539

Keyword

nonn,base

Author

Jaroslav Krizek, Jun 13 2014

Status

approved