A071290 The sequence f(1), f(2), ... as defined in A067836.

1, 2, 6, 30, 210, 2730, 30030, 510510, 9699690, 223092870, 8254436190, 602573841870, 17474641414230, 541713883841130, 23293697005168590, 1840202063408318610, 97530709360640886330, 8095048876933193565390, 542368274754523968881130, 22237099264935482724126330

Offset: 1

Author

Dean Hickerson, Jun 10 2002

Keywords

• nonn

Crossrefs

Cf. A067836.

Programs

Mathematica

Join[{f = 1}, a = 2; Table[f = f*a; a = NextPrime[f + 1] - f; f, {n, 2, 20}]] (* Jayanta Basu, Aug 10 2013 *)

Perl

# Generate f(n) from B(n) sequence using the b067836.txt file:
perl -nE '/(\d+)\s+(\d+)/; $f[$n] = $f[$n-1]*$2; say "$n $f[$n]"; $n++; BEGIN { use Math::GMP qw/:constant/; $f[1]=1; $n=2; say "1 1"; }' b067836.txt
#  Dana Jacobsen, Feb 15 2015

Extensions

Two more terms from Jayanta Basu, Aug 10 2013