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A116212
List of the positive divisors of each term of A116137.
2
1, 1, 2, 1, 3, 1, 5, 1, 2, 3, 6, 1, 3, 9, 1, 2, 5, 10, 1, 3, 5, 15, 1, 2, 4, 8, 16, 1, 2, 3, 6, 9, 18, 1, 3, 7, 21, 1, 3, 9, 27, 1, 2, 4, 7, 14, 28, 1, 31, 1, 2, 4, 5, 8, 10, 20, 40, 1, 41, 1, 43, 1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 1, 2, 29, 58, 1, 59, 1, 2, 31, 62, 1, 67, 1, 2, 41, 82, 1, 83, 1, 5
OFFSET
1,3
LINKS
FORMULA
a(n) = A116137(n) - A116137(n-1).
EXAMPLE
A116137 begins 1,2,3,5,6,9,... So this sequence begins: 1; 1,2; 1,3; 1,5; 1,2,3,6; 1,3,9;...
PROG
(Python)
from sympy import divisors
def A116212_list(max_n):
A116137, A116212, n = [1], [], 0
while len(A116212) < max_n:
A116212.extend(divisors(A116137[-1]))
A116137.append(A116137[-1]+A116212[n])
n += 1
return(A116212[:max_n]) # John Tyler Rascoe, Nov 18 2023
CROSSREFS
Cf. A116137.
Sequence in context: A354366 A101387 A117365 * A079068 A133021 A131208
KEYWORD
nonn
AUTHOR
Leroy Quet, Apr 16 2007
EXTENSIONS
More terms from R. J. Mathar, Jan 30 2008
Edited by Charles R Greathouse IV, Apr 29 2010
Edited by John Tyler Rascoe, Nov 19 2023
STATUS
approved