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A053474
Cototients of non-cototient numbers: A051953(A005278(n)).
3
6, 14, 18, 30, 28, 30, 44, 60, 60, 62, 82, 68, 74, 94, 106, 88, 126, 102, 104, 110, 150, 120, 124, 164, 158, 136, 138, 178, 148, 150, 190, 164, 212, 176, 174, 182, 246, 252, 194, 198, 204, 208, 220, 234, 286, 318, 242, 322, 302, 328
OFFSET
1,1
COMMENTS
The iteration-graph (rooted tree) of A051953 has initial vertices given by A005278. Sequence gives immediate successors of initial terms. The iteration ends at 0 fixed point.
LINKS
EXAMPLE
30, 60, 150 and 164 occur twice in the terms shown. These numbers occur in A051953, but their arguments do not: 50, 58 or 100, 116 or 222, 298 or 260, 326 are non-cototients, terms of A005278.
CROSSREFS
Sequence in context: A340634 A156858 A032500 * A072204 A037177 A351975
KEYWORD
nonn
AUTHOR
Labos Elemer, Jan 14 2000
STATUS
approved