A032697 Exactly 1 digit from {1,2,3,4,5,6,7,8,9} can precede a(n) to form a lucky number.

13, 25, 43, 49, 53, 71, 103, 113, 125, 137, 141, 145, 149, 155, 157, 159, 165, 193, 199, 219, 239, 255, 267, 275, 287, 295, 297, 307, 313, 317, 333, 347, 349, 381, 383, 407, 417, 423, 429, 431, 437, 453, 457, 497, 499, 509, 511, 521, 537, 541, 555, 557

Offset

1,1

Links

Table of n, a(n) for n=1..52.

Example

If a(n) = 333 then we find only '7'333 to be a lucky number.

Crossrefs

Cf. A000959.

Sequence in context: A344900 A195558 A026058 * A125724 A277714 A163551

Adjacent sequences: A032694 A032695 A032696 * A032698 A032699 A032700

Keyword

nonn,base,less

Author

Patrick De Geest, May 15 1998

Status

approved