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A132078
Multiply previous term by 6 and reverse.
8
1, 6, 63, 873, 8325, 5994, 46953, 817182, 2903094, 46581471, 628884972, 2389033773, 83620243341, 640064127105, 362674830483, 8982898406712, 27204409379835, 10972654622361, 66143772953856, 631327736268693, 8512167146697873, 83278108820037015, 90222029256866994
OFFSET
1,2
FORMULA
a(n) = reverse(6 * a(n-1)) where a(1) = 1.
EXAMPLE
a(4) = reverse(6 * a(3)) = reverse(6 * reverse(6 * a(2))) = reverse(6 * reverse( 6 * reverse(6 * a(1)))) = reverse(6 * reverse(6 * reverse(6))) = reverse(6 * 63) = 873.
PROG
(Magma) f:=func<n|Seqint(Reverse(Intseq(6*n)))>; a:=[1]; for n in [2..25] do Append(~a, f(a[n-1])); end for; a; // Marius A. Burtea, Jan 03 2020
CROSSREFS
Cf. A036447 (*2), A163632 (*3), A132064 (*4), A045539 (*5), A132114 (*7), A132113 (*8), A133361 (*9).
Sequence in context: A231552 A302103 A229451 * A113669 A340912 A121415
KEYWORD
base,nonn
AUTHOR
Rachit Agrawal (rachit_agrawal(AT)daiict.ac.in), Oct 30 2007
EXTENSIONS
Name clarified and terms a(16) and beyond from Andrew Howroyd, Jan 02 2020
STATUS
approved