The first of two consecutive heptagonal numbers the sum of which is equal to the sum of two consecutive primes.

A298465

The first of two consecutive heptagonal numbers the sum of which is equal to the sum of two consecutive primes.

Terms

    a(0) =1a(1) =18a(2) =403a(3) =16281a(4) =24354a(5) =167314a(6) =172528a(7) =183196a(8) =191407a(9) =223054a(10) =413512a(11) =446688a(12) =476767a(13) =507826a(14) =512343a(15) =791578a(16) =926289a(17) =994456a(18) =1032658a(19) =1248562a(20) =1284147a(21) =2221708a(22) =2278630a(23) =2453716a(24) =2604571a(25) =2738952a(26) =2770443a(27) =3207523a(28) =3333330a(29) =4203577

External references