A147873 A sequence based on the mechanics of A147781: b(n) = Apply[Plus, IntegerDigits( 17982*Sum_{m=0..7} Prime(n+m) )]; a(n) = 1-(b(n) mod 2).

0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1

Offset: 1

Author

E.J.P. Vening and Roger L. Bagula, Nov 16 2008

Keywords

• nonn
• base
• less
• uned

Programs

Mathematica

a[n_] := Apply[Plus, IntegerDigits[27*666*Sum[Prime[n + m], {m, 0, 7}]]]; Table[1 - Mod[a[n], 2], {n, 1, 100}]