Sets of 4 numbers in arithmetic progression with common difference 6 and whose phi values are equal.

A039670

Sets of 4 numbers in arithmetic progression with common difference 6 and whose phi values are equal.

Terms

    a(0) =72a(1) =78a(2) =84a(3) =90a(4) =216a(5) =222a(6) =228a(7) =234a(8) =76326a(9) =76332a(10) =76338a(11) =76344a(12) =101526a(13) =101532a(14) =101538a(15) =101544a(16) =116646a(17) =116652a(18) =116658a(19) =116664a(20) =146886a(21) =146892a(22) =146898a(23) =146904a(24) =298086a(25) =298092a(26) =298098a(27) =298104a(28) =369366a(29) =369372

External references