Centered Triangular Number - Centered Triangular Prime

A centered triangular prime is a centered triangular number that is prime. The first few centered triangular primes are

19, 31, 109, 199, 409, … (sequence A125602 in OEIS).

(corresponding to n: 3, 4, 8, 11, 16, ...)

Read more about this topic:  Centered Triangular Number

Famous quotes containing the words centered and/or prime:

    The difference between style and taste is never easy to define, but style tends to be centered on the social, and taste upon the individual. Style then works along axes of similarity to identify group membership, to relate to the social order; taste works within style to differentiate and construct the individual. Style speaks about social factors such as class, age, and other more flexible, less definable social formations; taste talks of the individual inflection of the social.
    John Fiske (b. 1939)

    By whatever means it is accomplished, the prime business of a play is to arouse the passions of its audience so that by the route of passion may be opened up new relationships between a man and men, and between men and Man. Drama is akin to the other inventions of man in that it ought to help us to know more, and not merely to spend our feelings.
    Arthur Miller (b. 1915)