OFFSET
1,1
COMMENTS
In base 12 the sequence is 30, 2630, 259630, 25909630, 2590409630, 259037409630, 259036X7409630, 259036X1X7409630, 259036X151X7409630, 259036X14851X7409630, where X is 10 and E is 11.
FORMULA
a(n) = (5*(12^n - 1)/11 + 1)^2 = A127861(n) - (12^(2*n) - 1)/11.. - Max Alekseyev, Jul 27 2023
EXAMPLE
a(1) = A127858(1)^2 = 6^2 = 36.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Walter Kehowski, Feb 04 2007
EXTENSIONS
Edited by Max Alekseyev, Jul 27 2023
STATUS
approved