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A070049 Sum of two perfect powers. 4
2, 5, 8, 9, 10, 12, 13, 16, 17, 18, 20, 24, 25, 26, 28, 29, 31, 32, 33, 34, 35, 36, 37, 40, 41, 43, 44, 45, 48, 50, 52, 53, 54, 57, 58, 59, 61, 63, 64, 65, 68, 72, 73, 74, 76, 80, 81, 82, 85, 89, 90, 91, 96, 97, 98, 100, 101, 104, 106, 108, 109, 113, 116, 117, 122, 125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..66.

PROG

(PARI) lista(nn) = {vec = vector(nn, i, i); pp = concat(1, select(i->ispower(i) , vec)); sumpp = Set(); for (i = 1, #pp, for (j = 1, #pp, sumpp = Set(concat(sumpp, pp[i]+pp[j])); ); ); for (i = 1, #sumpp, if (sumpp[i] <= nn, print1(sumpp[i], ", ")); ); } \\ Michel Marcus, Oct 04 2013

CROSSREFS

Cf. A001597, complement of A075434.

Sequence in context: A276784 A153129 A076871 * A085254 A274035 A068537

Adjacent sequences:  A070046 A070047 A070048 * A070050 A070051 A070052

KEYWORD

nonn,easy

AUTHOR

Sharon Sela (sharonsela(AT)hotmail.com), May 06 2002

EXTENSIONS

More terms from Rick L. Shepherd, Aug 24 2002

STATUS

approved

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Last modified May 21 00:51 EDT 2019. Contains 323428 sequences. (Running on oeis4.)