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A116112 Numbers n such that n concatenated with n-7 gives the product of two numbers which differ by 7. 16
17, 35, 10408517, 45884051, 62918301, 1116290522645838319925, 1491109615209578451401, 2254276950187476704727, 2758431647767103545151, 3768131911733856383477, 4434103687048263321737, 5230580700713956424051 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Also numbers n such that n concatenated with n-1 gives the product of two numbers which differ by 5.

Also numbers n such that n concatenated with n+3 gives the product of two numbers which differ by 3.

Also numbers n such that n concatenated with n+5 gives the product of two numbers which differ by 1.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

62918301//62918300 = 79321055 * 79321060, where // denotes concatenation.

62918301//62918304 = 79321056 * 79321059.

62918301//62918306 = 79321057 * 79321058.

CROSSREFS

Cf. A116107, A115426, A116113, A116119, A116243.

Cf. A116163, A115429, A116158, A116281.

Cf. A116171, A116177, A116179, A116185, A116309, A115430, A116322.

Sequence in context: A041574 A144534 A041576 * A190755 A098849 A319059

Adjacent sequences:  A116109 A116110 A116111 * A116113 A116114 A116115

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

EXTENSIONS

Edited by N. J. A. Sloane, Apr 15 2007

STATUS

approved

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Last modified February 19 07:51 EST 2019. Contains 320309 sequences. (Running on oeis4.)