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A162503
2
1, 30, 31, 14, 10, 16, 6, 4, 11, 80, 81, 40, 12, 23, 32, 41, 2, 28, 82, 15, 20, 35, 53, 5, 21, 300, 301, 50, 13, 48, 84, 51, 3, 57, 75, 67, 76, 68, 60, 61, 19, 17, 24, 7, 29, 70, 36, 71, 104, 18, 49, 8, 58, 118, 808, 86, 9, 90, 42, 91, 92, 100, 63, 101, 44, 102, 94, 22, 85, 719
OFFSET
1,2
COMMENTS
Inverse of A162504: a(A162504(n)) = A162504(a(n)) = n;
A162501(n) = A162502(a(n)) = a(A162502(n)).
CROSSREFS
Sequence in context: A051723 A247517 A165851 * A003896 A114964 A341745
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jul 05 2009
STATUS
approved