Number of length 1+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four.
A249172
Number of length 1+6 0..n arrays with every seven consecutive terms having four times the sum of some three elements equal to three times the sum of the remaining four.
Terms
- a(0) =2a(1) =395a(2) =2258a(3) =11177a(4) =39066a(5) =115437a(6) =287988a(7) =650085a(8) =1339852a(9) =2581121a(10) =4671630a(11) =8093245a(12) =13377140a(13) =21392687a(14) =33096114a(15) =49833787a(16) =73122200a(17) =105132375a(18) =147967210a(19) =204844311a(20) =278931122a(21) =374403885a(22) =495751168a(23) =648915047a(24) =839349796
External references
- oeis: A249172