Number of zero-sum -5..5 arrays of n elements with first through fourth differences also in -5..5.

A201436

Number of zero-sum -5..5 arrays of n elements with first through fourth differences also in -5..5.

Terms

    a(0) =1a(1) =5a(2) =27a(3) =115a(4) =479a(5) =1341a(6) =4285a(7) =14655a(8) =50273a(9) =176501a(10) =608601a(11) =2124765a(12) =7445803a(13) =26215687a(14) =92619475a(15) =327842063a(16) =1163529557a(17) =4137930391a(18) =14741976265a(19) =52598018933a(20) =187903914621a(21) =672086812005

External references