A022785 Place where n-th 1 occurs in A023123.

1, 4, 10, 19, 30, 44, 61, 81, 103, 128, 156, 186, 219, 255, 294, 335, 379, 426, 475, 527, 582, 640, 700, 763, 829, 897, 968, 1042, 1119, 1198, 1280, 1365, 1452, 1542, 1635, 1731, 1829, 1930, 2034, 2141, 2250, 2362, 2477, 2594, 2714, 2837, 2963

Offset

1,2

Links

Table of n, a(n) for n=1..47.

Formula

a(n) = 1 + Sum_{k=1..n-1} ceiling(e*k). - Benoit Cloitre, Jan 24 2009

Prog

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

Crossrefs

Sequence in context: A173248 A267882 A238705 * A241239 A057312 A219965

Adjacent sequences: A022782 A022783 A022784 * A022786 A022787 A022788

Keyword

nonn

Author

Clark Kimberling

Status

approved