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A046950
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Square elements of A046949.
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0
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1, 25, 49, 169, 625, 1369, 3025, 7921, 18769, 37249, 208849, 3485689, 4950625, 7756225, 225150025, 48195616225, 264353307409, 453673643809, 1278932548201
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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PROG
| (PARI) B=1; for (n=1, 200000, t1=divisors(2*n); t2=0; for (i=1, length(t1), if( t1[ i ]%4 <> 0, t2=t2+t1[ i ])); B=B+8*t2; if (issquare(B), print("B is square ", B)))
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CROSSREFS
| Sequence in context: A137659 A020325 A108604 * A146641 A171590 A056981
Adjacent sequences: A046947 A046948 A046949 * A046951 A046952 A046953
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KEYWORD
| nonn,nice
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from Jason Earls (zevi_35711(AT)yahoo.com), Jul 21 2001
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