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A082740 Square root of the sum of the terms of the n-th row of A082737. 4
1, 3, 5, 12, 19, 20, 25, 42, 39, 46, 73, 74, 79, 86, 95, 104, 141, 136, 143, 170, 171, 192, 197, 220, 225, 244, 255, 272, 303, 310, 325, 340, 357, 390, 399, 418, 455, 462, 473, 494, 549, 546, 579, 580, 599, 678, 651, 668, 705, 732, 737, 758, 825, 832, 833, 864 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..56.

MAPLE

A082740 := proc(nmax) local T, a, n, r, i, rsum, c, j ; T := [1, 2, 7] ; a := [1, 3] ; n := 3 ; i := 1 ; while nops(a)< nmax do r := [] ; for c from 1 to n-1 do while ithprime(i) in T or ithprime(i) in r do i:= i+1 ; od ; r := [op(r), ithprime(i)] ; i:= i+1 ; od ; j := i+1 ; rsum := sum(op(k, r), k=1..nops(r)) ; while not issqr( rsum+ithprime(j)) do j := j+1 ; od ; r := [op(r), ithprime(j)] ; a := [op(a), sqrt(sum(op(l, r), l=1..nops(r)))] ; T := [op(T), op(r)] ; n := n+1 ; od ; RETURN(a) ; end: a := A082740(80) : for n from 1 to nops(a) do printf("%d, ", op(n, a)) ; od ; # R. J. Mathar, Nov 12 2006

CROSSREFS

Cf. A082737, A082738, A082739.

Sequence in context: A279784 A198301 A323866 * A010067 A024458 A143643

Adjacent sequences:  A082737 A082738 A082739 * A082741 A082742 A082743

KEYWORD

nonn

AUTHOR

Amarnath Murthy, Apr 14 2003

EXTENSIONS

More terms from R. J. Mathar, Nov 12 2006

STATUS

approved

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Last modified February 18 21:20 EST 2020. Contains 332028 sequences. (Running on oeis4.)