A032699 Exactly 3 digits from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a lucky number.

1, 5, 7, 11, 15, 21, 23, 33, 37, 39, 51, 59, 61, 67, 73, 77, 79, 89, 91, 95, 97, 107, 111, 115, 121, 127, 139, 151, 163, 175, 179, 183, 191, 195, 223, 229, 231, 235, 237, 251, 257, 263, 277, 283, 285, 299, 301, 325, 331, 335, 355, 363, 365, 377, 395, 399, 403

Offset

1,2

Links

Table of n, a(n) for n=1..57.

Example

If n = 111 then we find only '3'111, '6'111 and '7'111 to be lucky numbers.

Crossrefs

Cf. A000959.

Sequence in context: A039001 A023741 A096819 * A073088 A054059 A072058

Adjacent sequences: A032696 A032697 A032698 * A032700 A032701 A032702

Keyword

nonn,base,less

Author

Patrick De Geest, May 15 1998

Status

approved