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A177867 a(n)=sqrt(A178825(n)+A178825(n+1)). 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 (list; graph; refs; listen; history; text; internal format)
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 * A226809 A161562 A102470

Adjacent sequences:  A177864 A177865 A177866 * A177868 A177869 A177870

KEYWORD

nonn

AUTHOR

Zak Seidov, Dec 28 2010

STATUS

approved

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Last modified December 8 18:37 EST 2019. Contains 329865 sequences. (Running on oeis4.)