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A366629 Sum of the divisors of 6^n+1. 10
3, 8, 38, 256, 1298, 9792, 52136, 338580, 1778436, 11889152, 62367272, 414625216, 2178461956, 15224775552, 80673299432, 611106029568, 2830769440776, 19344856702976, 115255634181184, 696800841097536, 3748220725527432, 27388329197137920, 135183433256806480 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
FORMULA
a(n) = sigma(6^n+1) = A000203(A062394(n)).
EXAMPLE
a(3)=256 because 6^3+1 has divisors {1, 7, 31, 217}.
MAPLE
a:=n->numtheory[sigma](6^n+1):
seq(a(n), n=0..100);
CROSSREFS
Sequence in context: A099030 A264657 A190658 * A106558 A065914 A288759
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Oct 14 2023
STATUS
approved

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Last modified February 21 06:00 EST 2024. Contains 370219 sequences. (Running on oeis4.)