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A115227 Numbers n such that n=(d_1+7)(d_2+7)*...*(d_k+7) where d_1 d_2 ... d_k is the decimal expansion of n. 4
8314460009856000, 31746120037632000, 92632873013093597184000000, 1108240107492643314063114240000, 25425833233403394290952098021376000000000, 67839608823081187608930897100800000000000, 1064102035269050218905833606927320350720000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Max Alekseyev, Table of n, a(n) for n = 1..18 (contains all terms below 10^100)

EXAMPLE

a(1)=8314460009856000=(7+8)*(7+3)*(7+1)*...*(7+6)*(7+0)*(7+0)*(7+0).

CROSSREFS

Cf. A055482, A098113, A098114, A097371, A097372, A113756

Sequence in context: A011529 A136607 A257140 * A104836 A247156 A320865

Adjacent sequences:  A115224 A115225 A115226 * A115228 A115229 A115230

KEYWORD

base,nonn

AUTHOR

Giovanni Resta, Jan 16 2006

EXTENSIONS

a(6)-a(18) from Max Alekseyev, Jan 25 2015

STATUS

approved

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Last modified January 17 18:37 EST 2019. Contains 319251 sequences. (Running on oeis4.)