A077213 - OEIS

A077213

a(1) = 2, a(n+1) is the smallest prime greater than n*a(n).

2, 3, 7, 23, 97, 487, 2927, 20507, 164057, 1476523, 14765237, 162417611, 1949011333, 25337147347, 354720062861, 5320800943001, 85132815088031, 1447257856496689, 26050641416940457, 494962186921868723

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..20.

FORMULA

a(n) = nextprime((n-1)*a(n-1)).

MATHEMATICA

PrimeNext[n_]:=Module[{k}, k=n+1; While[ !PrimeQ[k], k++ ]; k]; p=2; lst={p}; Do[p=PrimeNext[n*p]; AppendTo[lst, p], {n, 2*4!}]; lst (* Vladimir Joseph Stephan Orlovsky, May 27 2009 *)

CROSSREFS

Cf. A082282, A076996.

Sequence in context: A087770 A237359 A087164 * A112601 A181609 A205827

Adjacent sequences: A077210 A077211 A077212 * A077214 A077215 A077216

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Nov 02 2002

EXTENSIONS

More terms from Vladeta Jovovic, Apr 14 2003

STATUS

approved