A118555 Lucky numbers for which the sum of the digits is also a lucky number.

1, 3, 7, 9, 21, 25, 43, 49, 63, 67, 69, 87, 111, 115, 133, 135, 151, 159, 171, 193, 195, 201, 205, 223, 241, 261, 267, 283, 285, 319, 331, 339, 357, 391, 393, 399, 409, 421, 427, 429, 463, 483, 489, 511, 517, 519, 535, 537, 553, 579, 591, 601, 621, 643, 645

Offset

1,2

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000

Example

49 is in the sequence because (1) it is a lucky number and (2) the sum of its digits 4+9=13 is also a lucky number.

Crossrefs

Cf. A000959, A007953.

Sequence in context: A096102 A316157 A045797 * A056652 A014959 A057233

Adjacent sequences: A118552 A118553 A118554 * A118556 A118557 A118558

Keyword

base,nonn

Author

Luc Stevens (lms022(AT)yahoo.com), May 07 2006

Status

approved