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A049632 a(n)=T(n,n), array T as in A049627. 0
1, 4, 6, 10, 14, 22, 26, 38, 46, 58, 66, 86, 94, 118, 130, 146, 162, 194, 206, 242, 258, 282, 302, 346, 362, 402, 426, 462, 486, 542, 558, 618, 650, 690, 722, 770, 794, 866 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..37.

FORMULA

a(n) = 2*A005728(n) if n>=1 . - R. J. Mathar, Feb 05 2008

CROSSREFS

Cf. A049643, A005728.

Sequence in context: A076924 A103801 A141247 * A216732 A276983 A061227

Adjacent sequences:  A049629 A049630 A049631 * A049633 A049634 A049635

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 19 15:03 EDT 2021. Contains 345141 sequences. (Running on oeis4.)