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A333023
Starts of runs of 6 consecutive even numbers that are all totient numbers (A002202).
6
2, 100, 102, 498, 267670, 26734060, 26734062, 31253680, 65974998, 70938496, 118428800, 1232747200, 2764919296, 3149734998, 3149735000, 3413655896, 3415058276, 3755544796, 4446555802, 5727840798, 6156991616, 10080661998, 10464983096, 11054945296, 11953158220
OFFSET
1,1
LINKS
EXAMPLE
2 is a term since 2, 4, 6, 8, 10 and 12 are all totient numbers.
PROG
(PARI) m = 6; v = vector(m); for(k=1, m, v[k] = istotient(2*k)); for(k = m+1, 1.5e5, if(Set(v) == [1], print1(2*(k-m), ", ")); v = concat(v[2..m], istotient(2*k)))
KEYWORD
nonn
AUTHOR
Amiram Eldar, Mar 05 2020
STATUS
approved