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A270808 First differences of A270807, divided by 2. 2
1, 1, 1, 1, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 1, 5, 3, 1, 5, 1, 8, 4, 5, 1, 2, 3, 6, 4, 2, 3, 1, 5, 1, 8, 1, 2, 6, 1, 2, 3, 1, 2, 4, 23, 1, 11, 3, 4, 2, 1, 23, 10, 2, 18, 1, 5, 1, 8, 6, 1, 8, 7, 23, 1, 2, 1, 5, 7, 2, 1, 2, 6, 18, 1, 2, 25, 2, 1, 32, 1, 17, 7, 2, 1, 2, 10, 14, 3, 7, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Chai Wah Wu, Table of n, a(n) for n = 0..10000

PROG

(Python)

from __future__ import division

from sympy import primefactors

A270808_list, a = [], 1

for i in range(10001):

    b = a//(max(primefactors(a)+[1])) + 1

    A270808_list.append(b//2)

    a += b # Chai Wah Wu, Apr 06 2016

CROSSREFS

Cf. A270807.

Sequence in context: A324884 A067815 A133780 * A290532 A080237 A136109

Adjacent sequences:  A270805 A270806 A270807 * A270809 A270810 A270811

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 05 2016

STATUS

approved

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Last modified August 22 07:40 EDT 2019. Contains 326172 sequences. (Running on oeis4.)