A022795 Place where n-th 1 occurs in A023133.

1, 5, 12, 22, 35, 51, 70, 92, 118, 147, 179, 214, 252, 293, 337, 385, 436, 490, 547, 607, 670, 736, 806, 879, 955, 1034, 1116, 1201, 1289, 1381, 1476, 1574, 1675, 1779, 1886, 1996, 2110, 2227, 2347, 2470, 2596, 2725, 2857, 2993, 3132, 3274

Offset

1,2

Links

Table of n, a(n) for n=1..46.

Example

a(n) = 1 + Sum_{k=1..n-1} ceiling(r*k) where r=Pi. [Benoit Cloitre, Jan 24 2009]

Prog

(PARI) a(n)=1+sum(k=1, n-1, ceil(Pi*k)) \\ Benoit Cloitre, Jan 24 2009

Crossrefs

Cf. A023133.

Sequence in context: A293502 A134340 A000326 * A025734 A153818 A069627

Adjacent sequences: A022792 A022793 A022794 * A022796 A022797 A022798

Keyword

nonn

Author

Clark Kimberling

Status

approved