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A287634
Ulam numbers k such that 4*k and 16*k are also Ulam numbers.
0
1, 324, 1296, 1858, 2630, 2814, 3451, 4905, 6366, 7258, 7322, 8754, 8966, 9980, 10655, 10779, 10909, 11881, 12248, 13609, 13917, 14769, 14904, 16502, 17281, 17303, 18923, 18943, 19598, 19852, 20284, 21342, 21904, 22012, 24367, 25425, 25814, 27607, 27908, 28729
OFFSET
1,2
CROSSREFS
Sequence in context: A111278 A241502 A014792 * A329613 A202094 A202486
KEYWORD
nonn
AUTHOR
Enrique Navarrete, May 28 2017
EXTENSIONS
a(11)-a(40) from Giovanni Resta, May 31 2017
STATUS
approved