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A029736 Palindromic cubes in base 16. 1
0, 1, 8, 4913, 16974593, 20346417, 68769820673, 83396175409, 281487861809153, 284799399232257, 337866128966449, 1152924803144876033, 1167339716607161089, 1382949865068368689 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..14.

P. De Geest, Palindromic numbers beyond base 10

FORMULA

a(n) = A029735(n)^3. - Michel Marcus, Dec 21 2015

PROG

(Python)

A029736_list, j = [], 0

for i in range(10**9):

    s = format(j, 'x')

    if s == s[::-1]:

        A029736_list.append(j)

    j += 3*i*(i+1)+1 # Chai Wah Wu, Dec 20 2015

(PARI) lista(nn) = {for (n=0, nn, my(vd = digits(n^3, 16)); if (Vecrev(vd) == vd, print1(n^3, ", ")); ); } \\ Michel Marcus, Dec 21 2015

CROSSREFS

Cf. A029735.

Sequence in context: A100351 A045478 A055319 * A206460 A093937 A178329

Adjacent sequences:  A029733 A029734 A029735 * A029737 A029738 A029739

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified March 27 06:50 EDT 2017. Contains 284144 sequences.