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A133361 Multiply by 9 and reverse. 8
1, 9, 18, 261, 9432, 88848, 236997, 3792312, 80803143, 782822727, 3454045407, 36680468013, 711212421033, 7929871190046, 41401704886317, 358679343516273, 7546461904118223, 70046073175181976, 487736675856414036, 4236277072800369834, 60582330255639462183 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..1000

FORMULA

a(n) = reverse(9*a(n-1)) where a(1) = 1.

Conjecture: a(n)^(1/n) tends to 10. - Vaclav Kotesovec, Jan 03 2020

MAPLE

a:= proc(n) option remember; `if`(n=1, 1,

      (s-> parse(cat(s[-i]$i=1..length(s))))(""||(9*a(n-1))))

    end:

seq(a(n), n=1..25);  # Alois P. Heinz, Apr 09 2015

CROSSREFS

Cf. A036447 (*2), A163632 (*3), A132064 (*4), A045539 (*5), A132078 (*6), A132114 (*7), A132113 (*8).

Sequence in context: A002169 A050685 A278588 * A005400 A134115 A071587

Adjacent sequences:  A133358 A133359 A133360 * A133362 A133363 A133364

KEYWORD

base,nonn

AUTHOR

Rachit Agrawal (rachit_agrawal(AT)daiict.ac.in), Oct 26 2007

EXTENSIONS

More terms from Alois P. Heinz, Apr 09 2015

STATUS

approved

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Last modified July 12 12:18 EDT 2020. Contains 335661 sequences. (Running on oeis4.)