A177867 a(n)=sqrt(A178825(n)+A178825(n+1)).

2, 4, 6, 8, 10, 14, 20, 24, 30, 36, 54, 68, 72, 84, 94, 102, 120, 134, 138, 168, 198, 258, 310, 320, 328, 338, 348, 360, 370, 390, 426, 446, 450, 510, 574, 588, 624, 660, 672, 692, 728, 754, 760, 778, 804, 870, 940, 974, 996, 1014, 1030, 1036, 1040, 1044, 1086, 1142, 1166, 1174, 1180, 1194, 1206, 1210, 1212, 1230, 1248, 1260, 1280, 1292, 1296

Offset

1,1

Links

Table of n, a(n) for n = 1..69

Example

n=1: A178825(1)+A178825(2)=1+3=2^2, hence a(1)=2,
n=2: A178825(2)+A178825(3)=3+13=4^2, hence a(2)=4,
n=3: A178825(3)+A178825(4)=13+23=6^2, hence a(3)=6.

Crossrefs

Cf. A178825.

Sequence in context: A288732 A122642 A305703 * A338738 A345986 A226809

Adjacent sequences: A177864 A177865 A177866 * A177868 A177869 A177870

Keyword

nonn

Author

Zak Seidov, Dec 28 2010

Status

approved