A076589 First occurrence of n as a term in the continued fraction for sqrt(Pi).

1, 4, 3, 20, 43, 7, 32, 54, 40, 86, 91, 29, 10, 363, 705, 169, 341, 14, 181, 81, 307, 574, 153, 234, 175, 477, 552, 9, 2550, 743, 801, 2245, 239, 360, 402, 44, 1985, 1682, 395, 1074, 331, 285, 1278, 2097, 384, 3972, 857, 2240, 146, 9736, 924, 1690, 350, 1445

Offset: 1

Author

Benoit Cloitre, Oct 20 2002

Keywords

• nonn

Crossrefs

Cf. A032523, A058280.

Programs

PARI

default(realprecision, 1500); v=contfrac(sqrt(Pi)); a(n)=if(n<0,0,s=1; while(abs(n-component(v,s))>0,s++); s)