What sequence is this the start of: 2 4 6 8 10 12 14?

Questions

what is narcissism?

in the film 'bright eyes', about which boat did shirley temple sing?

which pre-metal group did a cover of the 1958 hit 'summertime blues'?

in the mid seventies, who proved that it was possible for a petite woman to sing, play bass and wear leather?

how many lines in a sonnet?