1,1

Table of n, a(n) for n=1..105.

Cino Hilliard, The x+1 conjecture

(PARI) xpcount2(n, p) = { for(x=1, n, p1 = x; f=0; ct=0; while(p1>1, if(p1%2==0, p1/=2; ct++, p1 = p1*p+1; ); if(p1==7, p2=7; if(p2%2==0, p2/=2, p2 = p2*p+1); if(p2 ==8 && p1 ==7, f=1) ); ); if(f, print1(ct" ")) ) }

Sequence in context: A158086 A195783 A167770 * A253443 A140341 A332609

Adjacent sequences: A080797 A080798 A080799 * A080801 A080802 A080803

easy,nonn

Cino Hilliard, Mar 25 2003

approved