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A036388 Number of odd split numbers (A036382) of which the binary order (A029837) is <= n, i.e., those which occur below 2^n. 1
0, 0, 0, 0, 1, 4, 12, 30, 69, 156, 347, 747, 1602, 3378, 7075, 14719, 30471, 62836, 128240, 264610 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,6

LINKS

Table of n, a(n) for n=1..20.

EXAMPLE

Below 32 the only odd split number is 21, so a(5) = 1. (In this range there are also 11 primes, 7 true prime powers, 1 composite connected number (15) and 4 even split numbers.)

CROSSREFS

Cf. A029837, A036378-A036390.

Sequence in context: A097809 A272144 A036389 * A037166 A118892 A100691

Adjacent sequences:  A036385 A036386 A036387 * A036389 A036390 A036391

KEYWORD

nonn

AUTHOR

Labos Elemer

STATUS

approved

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Last modified May 25 01:17 EDT 2019. Contains 323534 sequences. (Running on oeis4.)