1,1

Eric Weisstein's World of Mathematics, Super Catalan Number

Eric Weisstein's World of Mathematics, Integer Sequence Primes

(PARI) s(m)= { if (m==1, return(a1)); if (m==2, return(a2)); r = (3*(2*m - 3)*a2 - (m - 3)*a1)/m; a1=a2; a2=r; return(r); } { a1=1; a2=1; n=0; for (m=1, 300, a=s(m); if (isprime(a), write("b092839.txt", n++, " ", m))); } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 21 2009]

Cf. A001003, A092840.

Sequence in context: A103016 A061032 A091424 this_sequence A047413 A115018 A057030

Adjacent sequences: A092836 A092837 A092838 this_sequence A092840 A092841 A092842

nonn,more

Eric Weisstein (eric(AT)weisstein.com), Mar 07, 2004