A032639 Lucky numbers indexed by the lucky numbers (Lucky numbers with lucky number subscripts).

1, 7, 21, 31, 49, 63, 87, 111, 141, 159, 189, 219, 259, 267, 339, 367, 391, 415, 427, 463, 517, 553, 601, 639, 679, 717, 801, 819, 855, 873, 925, 991, 1039, 1087, 1117, 1147, 1275, 1303, 1323, 1387, 1417, 1471, 1519, 1563, 1611, 1659, 1675, 1711, 1857

Offset

1,2

Links

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

Formula

a(n) = A000959(A000959(n)). - Amiram Eldar, Nov 16 2019

Crossrefs

Cf. A000959, A006450.

Sequence in context: A319527 A297178 A325553 * A264619 A015729 A271972

Adjacent sequences: A032636 A032637 A032638 * A032640 A032641 A032642

Keyword

nonn

Author

Patrick De Geest, May 15 1998

Status

approved