A352418 Decimal expansion of the sum of the reciprocals of the highly composite numbers.

2, 1, 3, 2, 8, 7, 2, 8, 2, 3, 5, 2, 5, 8, 1, 2, 0, 1, 0, 3, 4, 3, 8, 7, 8, 4, 1, 1, 8, 3, 0, 5, 1, 8, 7, 7, 9, 0, 7, 2, 8, 8, 8, 0, 6, 8, 9, 5, 9, 3, 3, 7, 0, 5, 4, 3, 2, 0, 3, 3, 0, 8, 7, 4, 3, 7, 3, 7, 8, 5, 9, 9, 2, 4, 0, 9, 3, 3, 7, 7, 0, 9, 2, 1, 7, 9, 9, 0, 3, 0, 6, 5, 3, 2, 5, 6, 1, 1, 9, 2, 0, 0, 2, 7, 7, 0, 4

Offset

1,1

Links

Johan Lindgren, Table of n, a(n) for n = 1..1100

Formula

Equals Sum_{n>=1} 1/A002182(n).

Example

1/1 + 1/2 + 1/4 + 1/6 + 1/12 + 1/24 + 1/36 + 1/48 + ... =
2.13287282352581201034387841183051877907288806895933...

Crossrefs

Cf. A002182.

Sequence in context: A280104 A135259 A122147 * A141486 A184344 A144243

Adjacent sequences: A352415 A352416 A352417 * A352419 A352420 A352421

Keyword

nonn,cons

Author

Johan Lindgren, Mar 15 2022

Status

approved