cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A036389 Number of (odd and even) split numbers (A036382) below 2^n.

Original entry on oeis.org

0, 0, 1, 4, 12, 30, 69, 150, 317, 659, 1361, 2784, 5686, 11557, 23445, 47472, 95991, 193891, 391266, 788979, 1589856, 3201863, 6445059, 12967425, 26080302, 52434693, 105386552, 211751544, 425359720, 854245385, 1715204991
Offset: 1

Views

Author

Labos Elemer

Keywords

Comments

Equivalently, number of split numbers (A036382) with binary order (A029837) <= n.
Partial sums of A036385. - Sean A. Irvine, Oct 29 2020

Examples

			The 12 odd and even split numbers below 32 are as follows: 6, 10, 12, 14, 18, 20, 21, 22, 24, 26, 28, 30.

Crossrefs

Cf. A029837 (ceiling(log_2(n))), A036382.

Extensions

Definition rephrased by M. F. Hasler, Apr 24 2017
a(21)-a(31) from Sean A. Irvine, Oct 29 2020
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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