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A032639
Lucky numbers indexed by the lucky numbers (Lucky numbers with lucky number subscripts).
5
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
FORMULA
a(n) = A000959(A000959(n)). - Amiram Eldar, Nov 16 2019
CROSSREFS
Sequence in context: A319527 A297178 A325553 * A264619 A015729 A271972
KEYWORD
nonn
AUTHOR
Patrick De Geest, May 15 1998
STATUS
approved