Number of n X 5 1..2 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order.

A166808

Number of n X 5 1..2 arrays containing at least one of each value, all equal values connected, rows considered as a single number in nondecreasing order, and columns considered as a single number in nondecreasing order.

Terms

    a(0) =4a(1) =19a(2) =54a(3) =124a(4) =250a(5) =460a(6) =790a(7) =1285a(8) =2000a(9) =3001a(10) =4366a(11) =6186a(12) =8566a(13) =11626a(14) =15502a(15) =20347a(16) =26332a(17) =33647a(18) =42502a(19) =53128a(20) =65778a(21) =80728a(22) =98278a(23) =118753a(24) =142504a(25) =169909a(26) =201374a(27) =237334a(28) =278254a(29) =324630

External references