OFFSET
1,2
LINKS
Scott R. Shannon, Table of n, a(n) for n = 1..10000
EXAMPLE
1 is a term as 7 - 1 = 6 and sopfr(7 + 1) = sopfr(8) = 6.4 is a term as 12 - 4 = 8 and sopfr(12 + 4) = sopfr(16) = 8.
CROSSREFS
KEYWORD
nonn
AUTHOR
Scott R. Shannon, Feb 11 2024
STATUS
approved