OFFSET
1,3
COMMENTS
a(n) is the largest value in the n-th row of A347270 divided by 4.
LINKS
FORMULA
a(n) = A056959(n)/4.
EXAMPLE
For n = 1 the 3x+1 sequence starting in 1 is 1, 4, 2, 1, 4, 2, 1, 4, 2, 1, ... The largest value is 4 and 4/4 = 1 so a(1) = 1.
For n = 7 the 3x+1 sequence starting in 7 is 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1, 4, 2, 1, ... The largest value is 52 and 52/4 = 13 so a(7) = 13.
CROSSREFS
KEYWORD
nonn
AUTHOR
Omar E. Pol, Aug 27 2021
STATUS
approved