Janet periodic table of the elements and structured hexagonal diamond numbers. a(n) = A166911(2*n) + A166911(2*n+1).

A167471

Janet periodic table of the elements and structured hexagonal diamond numbers. a(n) = A166911(2*n) + A166911(2*n+1).

Terms

    a(0) =16a(1) =128a(2) =464a(3) =1152a(4) =2320a(5) =4096a(6) =6608a(7) =9984a(8) =14352a(9) =19840a(10) =26576a(11) =34688a(12) =44304a(13) =55552a(14) =68560a(15) =83456a(16) =100368a(17) =119424a(18) =140752a(19) =164480a(20) =190736a(21) =219648a(22) =251344a(23) =285952a(24) =323600a(25) =364416a(26) =408528a(27) =456064a(28) =507152a(29) =561920

External references