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A157874 The general form of the recurrences are the a(j) , b(j) and n(j) solutions of the 2 equations problem : 6*n(j)+1 = a(j)*a(j) ; 7*n(j)+1 = b(j)*b(j) ; with n(j), a(j), b(j) positive integer elements. +0
1
0, 104, 70200, 47314800, 31890105104, 21493883525400 (list; graph; listen)
OFFSET

1,2

FORMULA

The a(j) recurrence is a(1)=1 ; a(2)=25 ; a(t+2)=26*a(t+1)-a(t) ;

resulting in a(j) terms A153111

The b(j) recurrence is b(1)=1 ; b(2)=27; b(t+2)=26*b(t+1)-b(t);

resulting in b(j) terms 1,27,701,18199, 472473, 12266099, 318446101

The n(j) recurrence is n(1)=0 ; n(2)=104 ; n(3)=675*n(2) ; n(t+3)=675*(n(t+2)-n(t+1)) + n(t) ;

resulting in n(j) terms 0, 104, 70200, 47314800, 31890105104 as listed above

CROSSREFS

A157014

Sequence in context: A015272 A048920 A091539 this_sequence A069172 A104437 A112814

Adjacent sequences: A157871 A157872 A157873 this_sequence A157875 A157876 A157877

KEYWORD

nonn

AUTHOR

Paul Weisenhorn (paulweisenhorn(AT)online.de), Mar 08 2009

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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