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A143857 n+(n+1)*(n+2)^(n+3). 3
8, 163, 3074, 62503, 1399684, 34588811, 939524102, 27894275215, 900000000008, 31384283767219, 1176925259169802, 47248516628391479, 2022385242251558924, 91957716979980468763, 4427218577690292387854, 225009351233083599856159 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Suggested by Karl Vago's contributions to Dario Alpern's list of records.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..250

Dario A. Alpern, ECM Factorization applet records

Dario A. Alpern, Factorization using the Elliptic Curve Method

FORMULA

a(n) = n + A061250(n+3). - R. J. Mathar, Sep 04 2008

EXAMPLE

a(1) = 1+(1+1)*(1+2)^(1+3) = 1+2*3^4 = 163.

MAPLE

A143857:=n->n+(n+1)*(n+2)^(n+3); seq(A143857(n), n=0..20); # Wesley Ivan Hurt, Mar 20 2014

MATHEMATICA

Table[n + (n + 1) (n + 2)^(n + 3), {n, 0, 20}] (* Vincenzo Librandi, Mar 20 2014 *)

PROG

(MAGMA) [n+(n+1)*(n+2)^(n+3): n in [0..50]]; // Vincenzo Librandi, Dec 27 2010

CROSSREFS

Cf. A007778.

Sequence in context: A061711 A316998 A075387 * A025606 A224899 A281830

Adjacent sequences:  A143854 A143855 A143856 * A143858 A143859 A143860

KEYWORD

nonn,easy

AUTHOR

Reinhard Zumkeller, Sep 03 2008

STATUS

approved

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Last modified April 21 07:53 EDT 2019. Contains 322327 sequences. (Running on oeis4.)