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A265552
a(n) = smallest base-7 palindrome m >= n such that every base-7 digit of n is <= the corresponding digit of m; m is written in base 10.
0
0, 1, 2, 3, 4, 5, 6, 8, 8, 16, 24, 32, 40, 48, 16, 16, 16, 24, 32, 40, 48, 24, 24, 24, 24, 32, 40, 48, 32, 32, 32, 32, 32, 40, 48, 40, 40, 40, 40, 40, 40, 48, 48, 48, 48, 48, 48, 48, 48, 50, 50, 100, 150, 200, 250, 300, 57, 57, 107, 157, 207, 257, 307, 64, 64, 114, 164, 214, 264, 314, 71, 71, 121, 171, 221, 271, 321
OFFSET
0,3
CROSSREFS
Sequences related to palindromic floor and ceiling: A175298, A206913, A206914, A261423, A262038, and the large block of consecutive sequences beginning at A265509.
Sequence in context: A097502 A318122 A265568 * A303936 A368239 A303645
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Dec 10 2015
STATUS
approved