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A062956 H(n^2)-H(n), where H(n) is the half-totient function (A023022). 1
2, 3, 8, 5, 18, 14, 24, 18, 50, 22, 72, 39, 56, 60, 128, 51, 162, 76, 120, 105, 242, 92, 240, 150, 234, 162, 392, 116, 450, 248, 320, 264, 408, 210, 648, 333, 456, 312, 800, 246, 882, 430, 528, 495, 1058, 376, 1008, 490, 800, 612, 1352, 477, 1080, 660, 1008 (list; graph; refs; listen; history; internal format)
OFFSET

3,1

PROG

(PARI) H(n)=eulerphi(n)/2; j=[]; for(n=3, 200, j=concat(j, H(n^2)-H(n))); j

CROSSREFS

(n-1)*A023022(n).

Sequence in context: A095164 A075384 A072500 * A053650 A119794 A117987

Adjacent sequences:  A062953 A062954 A062955 * A062957 A062958 A062959

KEYWORD

nonn

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Jul 22 2001

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.