A147781 1 - A147850(n).

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

Offset

1,1

Comments

Old name was: Odd/even binary expansion of summed, partitioned subsequent prime numbers. The sum of 8 subsequent prime numbers is multiplied, forming a new sum. The digits of each sum are added per digit, forming a new sum. The odd or even result is visualized by 0/1.

Links

Table of n, a(n) for n=1..105.

Formula

a(n) = 1 - A147850(n).

Example

2+3+5+7+11+13+17+19 = 1384614, 1+3+8+4+6+1+4 = 27 (odd/0).
23+29+31+37+41+43+47+53 = 5466528, 5+4+6+6+5+2+8 = 36 (even/1).
461+463+467+479+487+491+499+503 = 69230700, 6+9+2+3+7 = 27 (odd/0).
509+521+523+541+547+557+563+569 = 77862060 , 7+7+8+6+2+6 = 36 (even/1).

Crossrefs

Sequence in context: A301850 A189031 A189212 * A327216 A288640 A361115

Adjacent sequences: A147778 A147779 A147780 * A147782 A147783 A147784

Keyword

easy,nonn,base,less

Author

E.J.P. Vening, Nov 12 2008

Extensions

More terms and better name by Joerg Arndt, Aug 28 2013

Status

approved